Question

If kinetic energy increases by 30%. The momentum will increase by​

Answer 1

Explanation:

v1= Initial velocity, P1 = initial momentum

v2=Final velocity, P2= final momentum

m=mass

K1= Initial kinetic energy, K2= final kinetic energy

P1=mv1, P2=mv2

given, P2−P1P1=0.3

i.e. v2−v1v1=0.3

Therefore, v2=1.3v1

K1=12mv21

K2=12mv22=12m(1.69v21)

Percentage change in K. E.=K2−K1K1∗100=69%