A sledge moving over a smooth horizontal surface of ice at a velocity `v_( 0)` drives out on a horizontal road and comes to a halt. The sledge has a length `l`, mass m and friction between runner and road is `mu`.

Options

A. No work is done by friction to switch the siedge from ice to the road
B. A work of `(mu m g l)/(2)` is done against friction while sledge switches completely on to road
C. the distance covered by the sledge on the road is `((v_(0)^(2))/( 2mu g)-l/2)`
D. total distance moved by the sledge before stopping is `((v_(0)^(2))/(2 mu g)-l/2)`

Answer

B, C, D