Questions
A smooth inclined plane of length l, having an inclination with horizontal is inside a lift which is moving down will retardation a. The time taken by a body to slide down the inclined plane from rest will be
detailed solution
Correct option is D
Using s=ut+12at2, we have L=012(g+a)sinθt2∴t=2L(g+a)sinθ1/2On inclined plane, g sin θ is replaced by (g + a) sin θ as the lift is moving down with retardation a (this is equivalent to moving up with acceleration a).Talk to our academic expert!
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A truck is stationary and has a bob suspended by a light string, in a frame attached to the truck. The truck, suddenly moves to the right with an acceleration of a. The pendulum will tilt
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