Question

if a body is in motion in straight line with constant momentum and if no external force act on a body then:
(A) velocity will increase
(B) velocity remain constant
(C) after some time the body will come to rest
(D) speed will increase.

Answer 1

Answer:

C)after some time the body will come to rest

Answer 2

Answer:

Now here's the tricky part!

(I) If No External Force (except frictional force of ground) Works

Then, (C) Body will come to rest after sometime

(II) But If Frictional Force also won't work

Then, (B) velocity will remain constant

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