PHYSICS · Subjective · A Level · Physics · Mechanics and materials · Mechanics and materials
Problem
Three carts with masses 1 kg, 2 kg, and 2 kg are linked by light strings and move in a straight line on a horizontal track. Each cart experiences a 1.0 N kinetic-friction force opposite the direction of motion. Determine the magnitude of the horizontal force that must be applied to the first cart so the entire system accelerates at 1.0 m/s².