Question

when no external force acts on an object, the physical quantity that remains conserved is :-
a)velocity
b) acceleration
c) force
d) momentum ​

Answer 1

Explanation:

If no external force applied then acceleration will be zero ,so velocity remain conserve . Momentum=mass×velocity if velocity don't change momentum also not change...

Answer 2

Answer:

The correct answer is option d) Momentum.

Explanation:

Conservation of energy is a basic law of material science which expresses that the energy of a framework is consistent assuming there are no outer powers following up on the framework.

An article very still stays very still and an item moving stays moving with a similar speed and in a similar bearing except if followed up on by an unequal power.

This is Newton's First law of motion

So, the correct answer is Momentum.