The v = 9.0 m/s line is higher because that object is moving faster than the others. These particular graphs are all horizontal. The initial velocity of each object is the same as the final velocity is the same as every velocity in between. The velocity of each of these objects is constant during this ten second interval. Jul 21, 2008 · an object initially at rest accelerates uniformly at 5.0 meters per second squared, until it attains a speed of 30. - Answered by a verified Tutor We use cookies to give you the best possible experience on our website. a radius of 5.0 meters. Calculate the speed at which the stroller moves around the curve. [Show all work, including the equation and substi-tution with units.] 16. The diagram below shows a 5.0-kilogram bucket of water being swung in a horizontal circle of 0.70-me-ter radius at a constant speed of 2.0 meters per second. Any moving object has a position that can be considered a function of time. When the motion is along a straight line, the position is given by a single variable, which we denote by \(s(t)\text{.}\) For example, \(s(t)\) might give the mile marker of a car traveling on a straight highway at time \(t\) in hours. Sound moves through the air at a speed of around 343 meters per second, which is 1234.8 km/h or 767 mph (at 20 °C / 68 °F). It means that a sound wave in air needs about 2.9 seconds to travel one kilometer, or 4.7 seconds to travel a mile - this data might be useful for storm-hunters to determine the lighting distance . Which graph represents the motion of an object traveling with a positive velocity and a negative acceleration? 41. Car A, moving in a straight line at a constant speed of 20. meters per second, is initially 200 meters behind car B, moving in the same straight line at a constant speed of 15 meters per second. o.) What was the average speed of the squirrel for the entire trip? p.) What was the average velocity of the squirrel for the entire trip? 02. How long does it take a car to travel 65.0 m if it is moving at 18.5 m/s? 03. A mailman walked in a straight line from one house to another, a distance of 32.5 m, in 12.7 s. What was his average velocity ... (C) The same as the original speed (D) Twice the original speed (E) Four times the original speed 3. A racing car is moving around the circular track of radius 300 meters shown above. At the instant when the car's velocity is directed due east, its acceleration is directed due south and has a magnitude of 3 meters per second squared. Distance An in-line skater first accelerates from 0.0 m/s to 5.0 m/s in 4.5 s, then continues at this constant speed for another 4.5 s. What is the total distance trav- eled by the in-line skater? Accelerating df = Vtf = 0.0 + 5.0 = 11.25 m Constant speed = Vftf = (5.0 s) = 22.5 m total distance = 11.25 m + 22.5 m = 34 m In one second, the stone will be moving at ten meters per second, and will have dropped five meters. The work done at this point by gravity is force x distance = 10 newtons x 5 meters = 50 joules, so this is the kinetic energy of a one kilogram mass going at 10 meters per second. How does the kinetic energy increase with speed? Aug 13, 2013 · A bus traveling on a straight road at 20 m/s uniformly slows to a stop over 20 s. The bus remains stopped for 20 s, then accelerates at a rate of 1.5 m/s2 for 10 s, and then continues at a constant speed. Graph speed vs. time for 60 s. What is the bus’s final speed? 1. Determine the x-axis and the y-axis of your graph. Nov 14, 2011 · Favorite Answer. Use the equation x= (Vi) (t) + (1/2) (a) (t^2) where Vi is the initial velocity, t is the elapsed time, and a is the acceleration. So in this case, Vi=5 m/s. a=2 m/s^2. t=4 s. x=? The correct answer a) if the car is moving on straight road. Q46. The speed of a moving object is determined to be 0.06 m/s. This speed is equal to: a) 2.16 km/h. b) 1.08 km/h. c) 0.216 km/h. d) 0.0216 km/h. Answer: The correct answer c) 0.216 km/h. Q47. A freely falling object travels 4.9m in 1 st second, 14.7m in 2 nd second, 24.5m in 3 rd ... 6. A horizontal force F is used to pull a 5 kilogram block across a floor at a constant speed of 3 meters per second. The frictional force between the block and the floor is 10 newtons. The work done by the force F in 1 minute is most nearly (A) 0 J (B) 30 J (C) 600 J (D) 1,350 J (E) 1,800 J. 7. 29. A car traveling in a straight line at an initial speed of 8.0 meters per second accelerates uniformly to a speed of 14 meters per second over a distance of 44 meters. What is the magnitude of the acceleration of the car? A. 0.41m/s2 B. 1.5m/s2 C. 3.0m/s2 D. 2.2m/s2 30. An object starts from rest and falls freely for 40. meters near the ... 3. One car travels 40. meters due east in 5.0 seconds, and a second car travels 64 meters due west in 8.0 seconds. During their periods of travel, the cars de nitely had the same A. average velocity B. total displacement C. change in momentum D. average speed Nov 01, 2012 · The local parameters include the following: h = 2.5, the eventual thickness of raft in terms of number of ants; α = 3.1, the average number of circle radii traveled by a straight-line motion ant until sticking to a circle boundary; γ = 34, the ant density in an ant layer in units of ants per cm 2; v = 0.39, the instantaneous speed of an ant ... What is the momentum (in kg-m/sec) of a 910-kilogram car traveling north at 13.3 meters per second? A n Object is moving in a straight line with constant acceleration. Initially traveling at 14 m/s. What is its average velocity (c) between t = 0 and t = 5.0 s, (d) between t = 25.0 s and t = 30.0 s, and (e) between t = 40.0 s and t = 50.0 s? -(a) Make a tangent line at t = 10 s to find the instantaneous velocity by its slope. This is the less steep of the two blue lines above. This line seems to have a slope of rise/run = 14 m/50 s = .28 m/s If t is measured in seconds and s in meters, then the units of velocity are meters per second, which we abbreviate as m/sec. The units of acceleration are then meters per second per second, which we abbreviate as m/sec 2. Problem 2. A body moves in a straight line according to this equation of motion: s(t) = 10t 2 − 4t + 8, 1. An object moves along the x-axis; its position is given by ( )= 3−4 2+5. What is the object’s acceleration at =2 ? 2. The position of a particle moving on a straight line after t seconds is ( )= 𝑖 meters. What is the velocity of the particle at =11𝜋 6 seconds? 3. 19.A car traveling in a straight line at an initial speed of 8.0 meters per second accelerates uniformly to a speed of 14 meters per second over a distance of 44 meters. What is the magnitude of the acceleration of the car? A)2.5 m/s2 west B) 2.5 m/s2 east C) 4.0 m/s2 west D) 4.0 m/s2 east 20.A car with an initial velocity of 16.0 meters per 5.0 V = 10 -10 +50 t 10. Sheila throws a rock vertically downward with a speed of 14.0 m/s from the top of a 30.0 m tower. NV hat is the rock's speed just as it hits the ground? a. 12.0 m/ s l). 19.8 m/s c. 28.0 m/ s d. 392 m/s e 784 m/s a CCC ( —2 11. Two balls, identical excep or co or, are projected horizontally from the roof of a tall ... A car initially traveling at a speed of 16 meters per second accelerates uniformily to a speed of 20 meters per second over a distance of 36 meters what is the magnitude of her acceleration? The acceleration of a moving object can be determined by using the following formula: where dV is the change of the velocity/speed over time dt which is equal to the difference between the initial speed and the final speed of the object, the dV can be found as shown below: dV = v1 - v0 where v0 is the initial velocity/speed while v1 is the final velocity/speed of the moving object. 3. One car travels 40. meters due east in 5.0 seconds, and a second car travels 64 meters due west in 8.0 seconds. During their periods of travel, the cars de nitely had the same A. average velocity B. total displacement C. change in momentum D. average speed For example, -15 m/s means moving backwards at 15 metres every second. The equation. When an object moves in a straight line with a constant acceleration, you can calculate its acceleration if you ... “Every object continues in a state of rest or in a state of motion in a straight line at constant speed, unless it is compelled to change that state by forces exerted on it” Simply stated, the motion remains unchanged unless there is a force present. At 1.0 s it is back at the origin where it started. The particle’s velocity at 1.0 s in (b) is negative, because it is traveling in the negative direction. But in (c), however, its speed is positive and remains positive throughout the travel time. We can also interpret velocity as the slope of the position-versus-time graph. the objects path. 14. 15. In the straight sections there is no acceleration, in the circular sections, there is a centripetal acceleration B 16. 17. 17. A car is traveling on a road in hilly terrain, see figure to the right. Assume the car has speed v and the tops and bottoms of the hills have radius of curvature R. The driver of the The acceleration of a moving object can be determined by using the following formula: where dV is the change of the velocity/speed over time dt which is equal to the difference between the initial speed and the final speed of the object, the dV can be found as shown below: dV = v1 - v0 where v0 is the initial velocity/speed while v1 is the final velocity/speed of the moving object. Velocity (V) is usually given in feet per second (fps) and mass (M) is given in pounds, derived from the weight (W) of the bullet in grains, divided by 7000 grains per pound times the acceleration of gravity (32 ft/sec) so that: Kinetic Energy (KE) = W(V) 2 / (450,435) ft/lb A ball is thrown straight up with a speed of 12 meters per second near the surface of earth. what is the maximum height reached by the ball? A 350 g rock is thrown straight up with an initial velocity of 25 0 m s on its way up it loses 6 00 j of energy due to air drag how high does the rock rise question 2 options

Question: Kinematics-TIUILUN 1 21. A Skater Increases Her Speed Uniformly From 2.0 Me- 25. A Car Traveling West In A Straight Line On A Highway Ters Per Second To 7.0 Meters Per Second Over A Dis Decreases Its Speed From 30.0 Meters Per Second To Tance Of 12 Meters.