1. A box is gently placed on a conveyor belt moving at 2 m/s. How long does the box move before coming to rest if the coefficient of friction between the box and the conveyor belt is 0.4?
2. A 30 kg block slides down a 20° ramp with an acceleration of 1.2 m/s2. What is the coefficient of kinetic friction between the block and the ramp?
2. A 30 kg block slides down a 20° ramp with an acceleration of 1.2 m/s2. What is the coefficient of kinetic friction between the block and the ramp?