A ball of 100 g mass is thrown with initial velocity of 0.01 km/s. Wha

1.	A ball of 100 g mass is thrown with initial velocity of 0.01 km/s. What is its momentum at that time?
Answer» Momentum = mass × velocity Here, mass of the ball = 100 gr = 100 × (1/100) kg ⇒ m = 0.1 kg Velocity of the ball = 0.01 km/s = 0.01 × 1000 m/s ⇒ v = 10 m/s Momentum of the ball = m × v = 0.1 × 10 kg.m/s = 1 kg.m/s

A ball of 100 g mass is thrown with initial velocity of 0.01 km/s. What is its momentum at that time?

Answer»

Momentum = mass × velocity

Here, mass of the ball = 100 gr = 100 × (1/100) kg

⇒ m = 0.1 kg

Velocity of the ball = 0.01 km/s = 0.01 × 1000 m/s

⇒ v = 10 m/s

Momentum of the ball = m × v = 0.1 × 10 kg.m/s = 1 kg.m/s