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A pendulum bob of mass 10^(-2) kg is rai...

A pendulum bob of mass `10^(-2)` kg is raised to a height of `5xx 10^(-2)` m and then released. At the bottom of its swing , a mass of `10^(-3)` kg is added to it . To what height will the combined mass rise ? `(g=10 m*s^(-2))`

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The correct Answer is:
`4.05 xx10^(-2)`m
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CHHAYA PUBLICATION-WORK AND ENERGY-PROBLEM SET -I
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