Force and Motion with Kinematics · PhysicsBowl 2007 #6
Physics · mechanics
Problem
A 500-kg car is moving at 28 m/s. The driver sees a barrier ahead. If the car takes 95 meters to come to rest, what is the magnitude of the minimum average net force necessary to stop?
(a) 47.5 N
(b) 1400 N
(c) 2060 N
(d) 19600 N
(e) 133000 N