Question
A crate of mass 30 kg is lying on a 30 incline as shown in the sketch. A steel ball of mass 20 kg is
A crate of mass 30 kg is lying on a 30 incline as shown in the sketch. A steel ball of mass 20 kg is attached to the crate with a rope. The rope is going over a frictionless pulley. Calculate: a. The static friction coefficient so that the block moves up with constant velocity. b. The kinetic friction coefficient so that the block moves up with an acceleration of 30 cm/s2.
9. A crate of mass 30kg is lying on a 30 incline as shown in the sketch. A steel ball of mass 20kg is attached to the crate with a rope. The rope is going over a frictionless pulley. Calculate: a. The static friction coefficient so that the block moves up with constant velocity. Ans: (0.19) b. The kinetic friction coefficient so that the block moves up with an acceleration of 30cm.s22. Ans: (0.13)
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Energy Revolution And Chemical Research
Authors: Kok-Keong Chong, Zhongliang Liu
1st Edition
1032365544, 978-1032365541
