PHYSICS · Single correct · A Level · Physics · Mechanics and materials · Mechanics and materials
Problem
A 0.20kg ball moves east with a speed of 5.0m/s. A constant 30N force acts westward on the ball for 0.010s. What is the ball’s speed and direction immediately after the force stops?
(a) 4.7m/s east
(b) 3.5m/s west
(c) 3.5m/s east
(d) 6.5m/s east