A cart with mass 2 m has a velocity before it strikes another cart of mass 3 m at rest

PHYSICS · Single correct · A Level · Physics · Mechanics and materials · Mechanics and materials

Problem

10. A cart with mass 2 m has a velocity

v

before it strikes another cart of mass 3 m at rest. The two carts couple and move off together with a velocity of (A)

v / 5

(B)

2 v / 5

(C)

2 v / 3

(D)

(2 / 5)^{1 / 2} v