Question

A body of mass 5kg moving with a velocity of 20m/s due south hits a stationary body of mass 3kg.if they move together after collision with a velocity v due south,the value of v is?

Answer 1

initial P = momentum = 5 *20 = 100 south
final momentum = same = 100 = (8) v south
so
v = 100/8 = 12.5 m/s south

Answer 2

I need answers

Answer 3

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Answer 4

I'm sorry, I don't understand the question or statement. Could you please provide more context or clarity?