MHT CET · Physics · Work Power Energy
The kinetic e nergy acquired by a body of mass 'M' in travelling a certain distance 'd:
starting from rest, under the action of constant force is
- A inversely proportional to \(\sqrt{\mathrm{M}}\).
- B directly proportional to M.
- C independent of M.
- D directly proportional to \(\sqrt{M}\).
Answer & Solution
Correct Answer
(C) independent of M.
Step-by-step Solution
Detailed explanation
Work done by external forces \(=\) Change in kinetic energy
Since particle starts from rest, its initial Kinetic Energy is o.
Therefore, K.E.=Fd
It is given that force is constant.
We see that Kinetic energy is independent of mass.
Since particle starts from rest, its initial Kinetic Energy is o.
Therefore, K.E.=Fd
It is given that force is constant.
We see that Kinetic energy is independent of mass.
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