Question

What is the momentum of a toy car of mass 200g moving with a speed of 5 m/s?

Answer 1

momentum, p = m×v 
where m is in kg
and v is in m/s

m= 200 gm = 200/1000 = 0.2 kg
v = 5 m/s
so, momentum, p = mv = 0.2×5 = 1 kg m s⁻¹

Answer 2

Hey frnd..

Momentum is denoted as "p"

Momentum is the product of mass and velocity..

Now 200 g has to converted to kg..

so.. 200 ÷ 1000 = 0. 2 kg

p = m × v

p = 0. 2 × 5

=1. 0 kgm/s

Hope it helps u frnd..