Inelastic Collision - Energy Loss · PhysicsBowl 2015 #28
Physics · mechanics
Problem
On a frictionless horizontal surface, two bodies make a head-on collision and stick together. Body 1 has a mass of 3.50 kg and initially moves to the right with speed 7.0 sm. Body 2 initially is at rest. A graph of the force exerted onto Body 2 from Body 1 during the collision is shown.
[Figure: Force vs time graph showing collision forces]
How much kinetic energy was transformed to other kinds of energy from the collision?
(A) 67.1 J
(B) 52.6 J
(C) 42.9 J
(D) 38.2 J
(E) 30.0 J