What is the momentum in kg. m/s of a 10 kg car travelling at
(a) 5 m/s (b) 20 cm/s, and (c) 36 km/h?
As we know,
Momentum, p = m × v
Where, m is the mass of the body
v is the velocity of the body,
Here, m = 10 kg
(a) v = 5 m/s
p = (10) × (5)
= 50 kg m/s
(b) v = 20 cm/s = 0.2 m/s
p = (10) × (0.2)
= 2 kg m/s
(c) v = 36 km/h = 10 m/s
p= (10) × (10)
= 100 kg m/s