A block of mass m is sliding down an inclined plane with constant speed. At a certain instant t0, its height above the ground is h. The coefficient of kinetic friction between the block and the plane is `mu`. If the block reaches the ground at a later instant `t_g`, then the energy dissipated by friction in the time interval `(t_(g)-t_(0))` is - A. `mu mgh`B. `mumg h// sin theta`C. mghD. `mumgh//cos theta`

A block of mass m is sliding down an inclined plane with constant spee

1.	A block of mass m is sliding down an inclined plane with constant speed. At a certain instant t0, its height above the ground is h. The coefficient of kinetic friction between the block and the plane is `mu`. If the block reaches the ground at a later instant `t_g`, then the energy dissipated by friction in the time interval `(t_(g)-t_(0))` is - A. `mu mgh`B. `mumg h// sin theta`C. mghD. `mumgh//cos theta`
Answer» Correct Answer - C

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