Q.

A smooth inclined plane of inclination 600  is fixed in a lift which is moving down with an acceleration 'g/3' . If the base of the inclined plane is 'L', the time taken by a body released at the top of the inclined plane to reach the bottom is

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a

4L3g

b

23Lg 

c

16L33g

d

2L3g

answer is C.

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Detailed Solution

S=ut+12at2

L=0+12(ga)sinθt2

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A smooth inclined plane of inclination 600  is fixed in a lift which is moving down with an acceleration 'g/3' . If the base of the inclined plane is 'L', the time taken by a body released at the top of the inclined plane to reach the bottom is