Question

15. When no external force acts on an object, the physical quantity that remains

conserved is______.

(a) velocity

(b) momentum

(c) acceleration

(d) force​

Answer 1

Answer:

a) velocity

Explanation:

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Answer 2

Answer:

if no external force applied then acceleration will be zero so velocity remains conserved

Momentum = mass × velocity

if velocity not change then momentum does not change

so answer is velocity and momentum

Explanation:

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