A heavy roller of weight W and radius r is pulled over a curb of height h. The minimum horizontal force required is obta...

Type: MCQ • Marks: 1

A heavy roller of weight W and radius r is pulled over a curb of height h. The minimum horizontal force required is obtained by taking moments about:

A. The center of the roller directly

B. The edge of the curb

C. The lowest point

D. The top edge

Explanation

For minimum force, the moment about the edge of the curb is taken, equating anticlockwise moment of pulling force to clockwise moment of weight.

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UP TGT Mathematics

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