A uniform plank of Young’s modulus is moved over a smooth horizontal surface by a constant force . The area of cross section of the plank is . The compressive strain on the plank in the direction of the force is |
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a) |
b) |
c) |
d) |

A uniform plank of Young’s modulus is moved over a smooth horizontal surface by a constant force . The area of cross section of the plank is . The compressive strain on the plank in the direction of the force is |
|||||||

a) |
b) |
c) |
d) |

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