A block of mass ' m ' initially at rest on a smooth horizontal surface, experiences a force F, which is constant in direction but magnitude changing with time as F =kt, where k is a constant. The distance traversed by the body till the moment it breaks off the horizontal plane is
| A. |
`(m^2g^3 cos alpha)/(6k^2 sin^3 alpha)` |
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| B. |
`(m^2g^3 cos alpha)/(3k^2 sin^3 alpha)` |
| C. |
`(m^2g^3 cos^3 cos alpha)/(k^2 sin alpha)` |
| D. |
`(m^2g^3 cos alpha)/(k^2 sin^3 alpha)` |