Question

A bomb of mass 9 kg explodes into two pieces of 3 kg and 6 kg. The velocity of the 3 kg piece is 16m/s. What is the kinetic energy of the 6 kg piece?

Answer 1

Answer:

192 joules

Explanation:

this question is based on conservation of momentum

mu=m1v1+m2v2

9(0)=3(16)+6(x)..............let x be velocity of 6 kg piece

x=8m/s

now kinetic energy of 6 kg piece is=1/2 mv^2=1/2(6)(8)(8)=192 joules

hope it helps..