1.

A block is released from rest on a smooth inclined plane having inclination `37^(@)` with the horizontal. The inclined plane is fixed on a lift which is moving up with retardation `5ms^(-2)`. Find out the displacement of the block with respect to the lift in initial 1 second (Take `g=10ms^(-2)`) A. 1.5mB. 1.25mC. 2.25mD. 2.5m

Answer» `s=(1)/(2)(g_(eff)sin theta)t^(2)=(1)/(2)xx5xx(3)/(5)xxt^(2)=1.5m`


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