Question 204: Work, Energy and Power & Circular Motion

Question

A wire suspended vertically from one of its ends is stretched by attaching a weight of $$200N$$ to the lower end. The weight stretches the wire by $$1$$ $$mm.$$ Then the elastic energy stored in the wire is

Accepted Answer

The elastic potential energy
$$ = {1 \over 2} 	imes $$ Force $$ 	imes $$ extension
$$= {1 \over 2} 	imes 200 	imes 0.001 = 0.1\,J$$

Answer

$$0.2$$ $$J$$

Answer

$$10$$ $$J$$

Answer

$$20$$ $$J$$

Answer

$$0.1$$ $$J$$

Work, Energy and Power & Circular Motion

A wire suspended vertically from one of its ends is stretched by attaching a weight of $200N to the lower end. The weight stretches the wire by 1 mm.$ Then the elastic energy stored in the wire is

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