Question

On doubling the velocity of a moving body, the quantity which gets double is:
(a) acceleration
b) momentum
(c) kinetic energy
(d) weight

April 17, 2024

Answer

(c) momentum

Reason — The momentum of an object is given by the product of its mass (m) and velocity (v) represented by :

p = mv

If the velocity is doubled, then the new momentum (p’) becomes:

p’ = m x 2v = 2(mv) = 2p

So, the momentum gets doubled when the velocity is doubled.

💡 Some Related Questions

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(b) What is the total mechanical energy at point C?
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