Rakesh Kumar • 28.44K Points
Instructor II Science

Q. The kinetic energy acquired by a mass (m) in traveling distance starting from rest under the action of constant force is directly proportional to ?

(A) 1/m
(B) m°
(C) m
(D) 1/?m

Correct Answer - Option(B)
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Explanation by: Rakesh Kumar

Work done by external forces = Change in kinetic energy Since particle starts from rest, its initial Kinetic Energy is 0. Therefore, K.E.=Fd It is given that force is constant. We see that Kinetic energy is independent of mass

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Q. The kinetic energy acquired by a mass (m) in traveling distance starting from rest under the action of constant force is directly proportional to ?

Explanation by: Rakesh Kumar

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