1.A pendulum comprising of a string of length L and a small sphere,swings in the vertical plane.The string hits a peg located at a distance ,d below the point of suspension.

1.1 show that the sphere is released from a height below that of a the peg, it will return to this height after striking the peg.

1.2 Show that if the pendulum is released from the horizontal position(angle=90 degrees) and is to swing in a complete circle centred on the peg,then the minimum value of ,d must be (^3)L/5.

(^3)is a superscript of L

Question

1.A pendulum comprising of a string of length L and a small sphere,swings in the vertical plane.The string hits a peg located at a distance ,d below the point of suspension.

1.1 show that the sphere is released from a height below that of a the peg, it will return to this height after striking the peg.

1.2 Show that if the pendulum is released from the horizontal position(angle=90 degrees) and is to swing in a complete circle centred on the peg,then the minimum value of ,d must be   (^3)L/5.

(^3)is a superscript of L

dancangwe · Answer

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