Question

2. A nut is opened by a wrench of length 20 cm. If the least force required is 2 N, find the moment of force needed
to loosen the nut.
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Answer 1

Explanation:

According to the principle of moments, we have Moment of load about the fulcrum = Moment of effort about the ful crum Load x Load arm = Effort x Effort arm

  Given that the effort arm = 20cm = 0.2m, the minimum force E = 2N 

Therefore, the moment of load or the moment of force = 0.2 93 Work, Power and Energy x 2 = 0.4Nm The moment of force needed to loosen the nut = 0.4Nm.

Answer 2

Answer:

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