A rectangular plank of mass and height is kept on a horizontal surface. Another rectangular plank of mass and height is placed over the first plank. The gravitational potential energy of the system is |
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a) |
b) |
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c) |
d) |

A rectangular plank of mass and height is kept on a horizontal surface. Another rectangular plank of mass and height is placed over the first plank. The gravitational potential energy of the system is |
|||

a) |
b) |
||

c) |
d) |

1 Answer

127 votes

Height of CG of mass Height of CG of mass Gravitational potential energy of system |

127 votes

127