A block is placed at the top of an inclined plane 5 m long. The plane makes an angle of 60^(@) with the horizontal. If the coefficient offriction between the wood and the plane is 0.3, find the time taken by the block of slide down the bottom of the plane.

A block is placed at the top of an inclined plane 5 m long. The plane

1.	A block is placed at the top of an inclined plane 5 m long. The plane makes an angle of 60^(@) with the horizontal. If the coefficient offriction between the wood and the plane is 0.3, find the time taken by the block of slide down the bottom of the plane.
Answer» SOLUTION :`t=SQRT(2S//a)=sqrt(2s(sintheta-mucostheta)G)=sqrt(2xx5(sin60-0.3cos60)xx9.8)=1.19s`