1.

A particle slides down a smooth inclined plane of elevation fixed in an elevator going with an acceleration a as shown in the figure. The base of the incline has a length L. If the elevator going up with constant velocity, the time taken by the particle to reach the bottom is

Answer»

`((2L)/((gsin THETA cos theta)))^(1//2)`
`((2L)/(g SIN theta))^(1//2)`
`((2L)/(g cos theta))^(1//2)`
None of these

Answer :A


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