A body of mass 10 kg slides down and inclined plane from rest. Its height from the ground level is 10m. the inclined plane is not smooth. When the body reaches the ground its speed is 14 m/s. then how much work is done against friction? (g = 10 m/s2) |
|||||||
(a) |
980 J |
(b) |
|
(c) |
20 J |
(d) |
|
A body of mass 10 kg slides down and inclined plane from rest. Its height from the ground level is 10m. the inclined plane is not smooth. When the body reaches the ground its speed is 14 m/s. then how much work is done against friction? (g = 10 m/s2) |
|||||||
(a) |
980 J |
(b) |
|
(c) |
20 J |
(d) |
|