P (N) 20 WE-4 A 3.00kg block is initially sliding to the right on a frictionless surface at 7.00m/s. Force P is directed to the left and is applied to the block continuously starting at the initial position as shown below. The magnitude of P varies as shown in the graph to the right. V=7.00m/s 15 10 5 1 4 (m) a) Find the magnitude of the work done by the force P as the block moves from x-0 to x-4m. b) Find the kinetic energy of the block at x-4m. Neglect air resistance (and the surface is frictionless). c) Find the speed of the block at x-4m.
P (N) 20 WE-4 A 3.00kg block is initially sliding to the right on a frictionless surface at 7.00m/s. Force P is directed to the left and is applied to the block continuously starting at the initial position as shown below. The magnitude of P varies as shown in the graph to the right. V=7.00m/s 15 10 5 1 4 (m) a) Find the magnitude of the work done by the force P as the block moves from x-0 to x-4m. b) Find the kinetic energy of the block at x-4m. Neglect air resistance (and the surface is frictionless). c) Find the speed of the block at x-4m.
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter4: Newton's Laws Of Motion
Section: Chapter Questions
Problem 77AP: A boy coasts down a hill on a sled, reaching a level surface at the bottom with a speed of 7.00 m/s....
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