Question

A body of mass 100gm is moving with a velocity of 20 ms. What is its momentum?​

Answer 1

K.E=1/2mv^2

m = 100g = 0.1kg

k.E = 20 J

so, 20=1/2 x0.1xv^2

40=0.1xv^2

400=v^2

So, V=20m/s

Momentum p = mv

p = 0.1kg x20 m/s

   =2kgm/s

Answer 2

Answer:

(Momentum is the product of mass and velocity. It is denoted by 'p')

P=MV

M=100g =0.1kg

V=20m/s

P=0.1×20=2 kgm/s