TS EAMCET · Physics · Center of Mass Momentum and Collision
When a bullet is fired from a rifle its momentum becomes \(20 \mathrm{~kg}-\mathrm{ms}^{-1}\). If the velocity of the bullet is \(1000 \mathrm{~ms}^{-1}\), then what is its mass?
- A 30 g
- B 5 kg
- C 20 g
- D 500 g
Answer & Solution
Correct Answer
(C) 20 g
Step-by-step Solution
Detailed explanation
Given, Momentum of bullet after firing \(=20 \mathrm{~kg} \mathrm{~ms}^{-1}\) Velocity \(=1000 \mathrm{~ms}^{-1}\) We know that, \(p=m v \Rightarrow m=\frac{p}{v}=\frac{20}{1000} \mathrm{~kg}\)…
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