A monkey pushes a box of mass 25 kg in a straight line across a rough floor. The applied force F has magnitude 85 N and acts downward at an angle 0 = 10° with respect to the horizontal, as shown below. The box is initially at rest at the position x, = 0 m, and it has speed v2 = 0.55 m/s at position x2 = 3 a). Find the coefficient of friction between the box and the floor. b). What is the net work done? c). How much work (magnitude and sign) is done by the friction force?
A monkey pushes a box of mass 25 kg in a straight line across a rough floor. The applied force F has magnitude 85 N and acts downward at an angle 0 = 10° with respect to the horizontal, as shown below. The box is initially at rest at the position x, = 0 m, and it has speed v2 = 0.55 m/s at position x2 = 3 a). Find the coefficient of friction between the box and the floor. b). What is the net work done? c). How much work (magnitude and sign) is done by the friction force?
Classical Dynamics of Particles and Systems
5th Edition
ISBN:9780534408961
Author:Stephen T. Thornton, Jerry B. Marion
Publisher:Stephen T. Thornton, Jerry B. Marion
Chapter2: Newtonian Mechanics-single Particle
Section: Chapter Questions
Problem 2.51P: Let us make the (unrealistic) assumption that a boat of mass m gliding with initial velocity v0 in...
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