Question 55

A force of 20 N displaces an object through 2 m and does a work of 20 J. The angle between the force and displacement is:

Solution

We know that $$work= force\times diplacement\times cosx$$
20j= $$2\times 20\times cosx$$
cosx= $$1\div 2$$
x= $$60^\circ$$

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