Collision with Direction Change · PhysicsBowl 2017 #27
Physics · mechanics
Problem
A 2.0 kg mass moves at 10.0sm when it has a collision in space. The mass's speed was unchanged, but the direction of its velocity was altered by 80°. If the collision lasted 0.25 s, what was the magnitude of the average force exerted on the mass?
(A) 0 N (B) 54.7 N (C) 102.8 N (D) 122.5 N (E) 150.3 N