1. A crate is sliding down an incline that is 35° above the horizontal. If the coefficient of kinetic friction is 0.10, what is the acceleration of the crate?
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- 2. A mass of 2.50 kg is at rest at time = 0. Do not consider friction in this problem. Two vector forces are applied to the mass. What is the resulting vector acceleration? F1 = 2.40 i + 1.50 j Newtons. F2 = 5.00 Newtons at an angle of 25.0°with the positive X axis.A box is initially sliding up a 32.5 ̊ incline at a speed of 13.0 m/s. The coefficients of friction between the incline and the box are μk = 0.680 and μs = 0.740. a)What is the acceleration of the box while it is sliding up the incline? b)How far will the box travel up the inline before coming to a stop? c)What would the coefficient of kinetic friction have to be for the box to be able to slide down the ramp at a constant speed?A block slides down a 18° incline. The coefficient of kinetic friction between the block and theincline is 0.22. What is the magnitude of the block's acceleration?
- A man is trying to move an object (m 14.0 kg) by pulling upward on the rope at an angle of 53° above the horizontal. The coefficient of kinetic friction is 0.300 between the object and the ground. The tension in the rope is 150 N. What is the acceleration of the object? 53 O 6.08 m/s2 O 6.86 m/s2 O 3.50 m/s2 7.77 m/s2 6.82 m/s2A 2kg box is given a swift kick, and then allowed to slide along the ground until friction slows it to a stop. If the coefficient of static friction between this box and the ground is 0.7, and the coefficient of kinetic friction is 0.5, what is the magnitude of the acceleration that this box will experience? * 4.9 m/s/s 2.7 m/s/s 6.3 m/s/s 9.8 m/s/sA book slides across a level, carpeted floor with an initial speed of 3.85 m/s and comes to rest after 3.75 m. Calculate the coefficient of kinetic friction μ between the book and the carpet. Assume the only forces acting on the book are friction, weight. and the normal force. H =
- You want to push a 22.0 kg rock up a 42.0° hill. You do so by pushing the rock with a 432.0 N horizontal force. The coefficient of kinetic friction between the rock and the hill is 0.125. What is the acceleration of the rock up the hill? What's the normal force from the hill on the rock?You push downward on a trunk at an angle 25° below the horizontal with a force of 750N If the trunk is on a flat surface and the coefficient of static friction between the surface and the trunk is 0.61, what is the most massive trunk you will be able to move? 93 kg 81 kg 112 kg 73 kg