1.

Two trolleys of mass m each, coupled together and moving with a certainvelocity v, collide with an exactly similar pair of stationary trolleys.Considering the collision to be elastic, use the law of conservation ofmomentum to find the velocity of the combination of all the trolleys aftercollision.

Answer»

Explanation:

2m × V + 2m × 0 =( 2m+ 2m) v¹

2mv = 4M

v ¹ = v/2

but as you asked VELOCITY of combination of trolleys the collision can't be elastic

It is PERFECTLY inelastic collision



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