A block is placed on top of a block resting on a frictionless horizontal surface
PHYSICS · Subjective · A Level · Physics · Mechanics and materials · Mechanics and materials
Problem
A 1.5kg block is placed on top of a 3.0kg block resting on a frictionless horizontal surface. The coefficient of static friction between the two blocks is 0.30 and the coefficient of kinetic friction is 0.25. A horizontal force P is applied to the upper block only. Determine the minimum magnitude of P that will cause the upper block to begin sliding over the lower block. Give your answer in newtons.