15. Determine the velocity of a cart that is accelerated from rest by a 30.0 N force for 20.0 m.The cart has a mass of 5.0 kg.16. Determine the potential energy stored in a 72.0 N/m spring extended by 0.70 m.17. Determine the work required to compress a 500 N/m spring from 0.2 compression to a0.6 m compression.18. An object starts from rest at the top of a frictionless inclined plane and slides down theplane. At the bottom, it has a speed of 9.8 m/s. What is the vertical height of the plane?19. A rollercoaster cart is at the top of a 200.0 m ideal rollercoaster. Determine how fast thecart will be moving halfway down and at the bottom of the rollercoaster.20. How much power must a motor supply in order to lift a 350 kg piano, at constantvelocity, up to a 15 m high window in 30 seconds?21. A 1500 kg car accelerates from 0 to 25 m/s in 7.0 s along a level road. What is theaverage power delivered by the engine (in HP)?22. A heavy object is dropped from a height of 8.0m. What is its speed when it hits theground?23. A 2.5kg object is dropped from a height of 10.0m above the ground. Calculate the speedof the object as it hits the ground.24. A 45.0 kg student runs at a constant velocity up an incline that is 6.0m tall. If the poweroutput of the student was 1500W, how long does it take the student to run up the incline?25. A 20.0kg object is lifted vertically at a constant velocity to a height of 2.50m in 2.00s.Calculate the power output of the student.26. The kinetic energy of a 20.ON droid is 500J. What is the speed of the droid?27. A 9.00kg object falls off a 1.2m high table. If all of the object's potential energy istransformed into kinetic energy just before it hits the floor, how fast is it moving?28. A safe is hurled down from the top of a 130m building at a speed of 11.0m/s. What is itsvelocity as it hits the ground?29. A 6kg cart is acted upon by a 4N force for a distance of 2.8m. If the cart starts at rest,determine the final velocity after the 2.8m push.

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Description: 15. Determine the velocity of a cart that is accelerated from rest by a 30.0 N force for 20.0 m.The cart has a mass of 5.0 kg.16. Determine the potential energy stored in a 72.0 N/m spring extended by 0.70 m.17. Determine the work required to compre

Given data: Initial velocity (Vi) = 0 m/s Force (F) = 30.0 N Displacement (d) = 20.0 m Mass (m) =…

Answered: Determine the velocity of a cart that…

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Determine the velocity of a cart that is accelerated from rest by a 30.0 N force for 20.0 m. The cart has a mass of 5.0 kg.

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter7: Work, Energy, And Energy Resources

Section: Chapter Questions

Problem 38PE: (a) How long will it take an 850-kg car with a useful power output of 40.0 hp (1hp=746W) to reach a...

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