The kinetic energy acquired by a mass m travelling distance d, starting from rest, under the action of a constant force is directly proportional to:
m
m0
√m
1/√m
A
m0
B
√m
C
m
D
1/√m
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Solution
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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.
Correct option is (B)
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