An 2.00 kg box is initially at rest on a ramp inclined at 23° below the horizontal. The coefficient of static friction is 0.310 and the coefficient of kinetic friction is 0.220. The box begins to slide down the ramp. a) Find the acceleration of the box. b) If it takes the box 3.00 s to slide to the base of the ramp, over what length of ramp did it slide? c) What was the initial height of the box above the ground? d) What magnitude of force F, applied perpendicularly to the top of the box (pressing it against the ramp) is needed. to prevent the box from starting to slide? 23° 23° 2.00 kg 2.00 kg ***********

An 2.00 kg box is initially at rest on a ramp inclined at 23° below the horizontal. The coefficient of static friction is 0.310 and the coefficient of kinetic friction is 0.220. The box begins to slide down the ramp. a) Find the acceleration of the box. b) If it takes the box 3.00 s to slide to the base of the ramp, over what length of ramp did it slide? c) What was the initial height of the box above the ground? d) What magnitude of force F, applied perpendicularly to the top of the box (pressing it against the ramp) is needed. to prevent the box from starting to slide? 23° 23° 2.00 kg 2.00 kg ***********

International Edition---engineering Mechanics: Statics, 4th Edition

4th Edition

ISBN:9781305501607

Author:Andrew Pytel And Jaan Kiusalaas

Publisher:Andrew Pytel And Jaan Kiusalaas

Chapter7: Dry Friction

Section: Chapter Questions

Problem 7.50P: The block of weight W is pulled by the force P inclined at the angle to the horizontal. Find the...

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