A boy is traveling 30 m/s on a scooter. He slows uniformly to a speed of 10 m/s in 5.0 seconds. What is the scooter?s acceleration?
A boy is traveling 30 m/s on a scooter. He slows uniformly to a speed of...
A car travelled for a total of 10 meters as he slows down uniformly from 60 mph to 20 mph. A) What is the magnitude of his deceleration in m/s?? B) Using the deceleration, initial speed, and final speed, calculate the amount of time it took him to decelerate from 60 to 20 mph. (round all answers to 2 sig fig) (be careful for units) A man is falling from rest due to gravity. A) How far in meters can...
A car slows down uniformly from a speed of 28.0 m/s to rest in 9.00 s How far did it travel in that time?
A 750 kg car slows to a stop from traveling southbound at 30 m/s over a distance of 500 m. What was the acceleration needed to stop the car? How large was the force required to stop the car? Two cables are being used to pull a 100 kg sled on a frictionless surface. The first cable has a tension of 500 N in a direction 15o south of east. The other cable has a tension of 800 N in...
A car traveling 67 mph (30 m/s) accelerates for 3 seconds in order to reach a speed of 100 mph (45 m/s). a. What is the acceleration of the car in m/s2 b. How far does it travel in m?
3. A car travelling at 60.0 m/s forward slows down to 40 m/s forward in 2.5 seconds. Assuming that this acceleration continues, how many seconds would it take the car to slow to (a) 20 m/s forward? (b) rest? 4. A toy car is propelled forward from rest by a girl's hand reaching a velocity of 6 m/s in 0.40 seconds. It is then released and stops in 2 seconds. (a) With what acceleration did the car speed up (a...
A speedboat increases its speed uniformly from 30 m/s to 40 m/s in a distance of 300 m. Find a. the magnitude of its acceleration and b. the time it takes the boat to travel the 300 m distance.
A car traveling at 20 m / s slows down at a rate of 0.50m / s2. Calculate: a) The distance the car traveled when it stopped. b) The time it takes to stop. c) The distance traveled by the car in the first three seconds after it begins to decelerate.
A rolling wheel of diameter of 68 cm slows down uniformly from 8.4 m/s to rest over a distance of 115 m. What is the magnitude of its angular acceleration if there was no slipping?
An object is observed to be traveling at a speed of 11.5 m/s in the -x direction at the present moment. What was its velocity 54.69 seconds ago (in m/s)? (Include the sign of velocity in your answer.) Its acceleration during this interval was 6.7 m/s^2 pointed in the +x direction.
A boy is running outwards at a constant speed of 2 m/s along a radial line on a merry-go-round platform. The platform is rotating at the rate of 20 revolutions per minute. What is the magnitude of the acceleration (in m/s2) acting on the boy when he is 1m away from the centre?