Question

find the momentum of a body of mass 100 g having a kinetic energy of 20 j​

Answer 1

Answer:

K.E=1/2(mv2)

m=100g=.1kg

K.E=20 J

so, 20=1/2 x0.1xv2

40=0.1xv2

400=v2

V=20m/s

Momentum ,p=mv

So, p=0.1kg x20 m/s

=2kgm/s

Hope it helps you...=)