A 15 kg box is sliding across the floor with a speed of 5.0 m/s. If friction brings it to a stop in 2.75 m, what is the work done by friction? What is the force of friction? What is the coefficient of friction?

Debris produced by mining is called

The built in flash in a compact camera is usally capable of giving correct exsposure for distance up to how many meters?

16. a brave but inadequate rugby player is being pushed backward by an opposing player who is exerting a force of 800 n on him. the mass of the losing player plus equipment is 90.0 kg, and he is accelerating at 1.20m/s2 size 12{1 "." "20"" m/s" rsup { size 8{2} } } {} backward. (a) what is the force of friction between the losing player’s feet and the grass? (b) what force does the winning player exert on the ground to move forward if his mass plus equipment is 110 kg? (c) draw a sketch of the situation showing the system of interest used to solve each part. for this situation, draw a free-body diagram and write the net force equation.