1.

A ball rolls down from the top of a staircase with horizontal velocity 36 m/s. If each step is 4 m high and 3 m wide, the ball just hits the edge of the nth step where n=1152αg , then α is : [g is the acceleration due to gravity]

Answer»

A ball rolls down from the top of a staircase with horizontal velocity 36 m/s. If each step is 4 m high and 3 m wide, the ball just hits the edge of the nth step where n=1152αg , then α is :

[g is the acceleration due to gravity]






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