Question

A car travelling at 25 m/s has momentum 20,000 Kgm/s, calculate the mass of the car.

Answer 1

`\Large {\underline { \sf {Required \; Solution :}}}`

We have ―

• Velocity of the car, v = 25 m/s
• Momentum of the car, P = 20,000 kg.m/s

We have been asked to calculate the mass of the car, m.

`\qquad\implies\boxed{\red{\sf{ P = mv}}}\\`

• P denotes momentum
• m denotes mass
• v denotes velocity

`\quad \twoheadrightarrow\sf { 20000 = 25m} \\`

`\quad \twoheadrightarrow\sf { \cancel{(20000)/(25)} = m} \\`

`\quad\twoheadrightarrow\boxed{\red{\sf{ m = 800 \; kg}}}\\`

Therefore, mass of the car is 800 kg.