A) the change in its velocity is zero
B) the change in its acceleration is zero
C) the change in its linear momentum is zero
D) the change in its speed is zero
Correct Answer: D
Solution :
By work-energy theorem, the kinetic energy remains constant when no work is done by. external force so,\[\frac{1}{2}m{{\upsilon }^{2}}=\text{constant}\] i.e., \[|\upsilon |=\text{constant}\]
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