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 |
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a) |
b) |
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c) |
d) |
(c) Height of CG of mass Height of CG of mass Gravitational potential energy of system |