1.

The time taken by a block of wood (initially at rest) to slide down a smooth inclined plane 9.8 m long (angle of inclination is \[{{30}^{o}}\]) is             [JIPMER 1999]

A.             \[\frac{1}{2}\sec \]
B.             2 sec
C.             4 sec
D.             1 sec
Answer» C.             4 sec


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