A block of mass is initially at rest on a frictionless horizontal surface while two…
PHYSICS · Subjective · A Level · Physics · Mechanics and materials · Mechanics and materials
Problem
A block of mass m is initially at rest on a frictionless horizontal surface while two equal and opposite horizontal forces of magnitude F act on it so that the net force is zero. At t=0, the force acting to the left is removed. Derive an expression, in terms of F, m, and the distance d the block has traveled after t=0, for the block’s speed v when it has traveled that distance.