MHT CET202014 Oct 2020Evening ShiftPhysicsWork, Power and EnergyActual
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
Options
- Ainversely proportional to M .
- Bdirectly proportional to M.
- Cindependent of M.
- Ddirectly proportional to M .
Correct answer
C. independent of M.
Step-by-step solution
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.