How much work does it take to raise a $14 k g$ $14 kg$ weight $2 m$ $2 m$ ?

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How much work does it take to raise a $14 k g$ $14 kg$ weight $2 m$ $2 m$ ?

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Answer 1 · 2015-12-28T19:43:53

It takes $- 274.68 J$ $-274.68J$ .

Explanation:

You have to use the equation $L = - (U (B) - U (A))$ $L=-(U(B)-U(A))$ , where $U = m g h$ $U=mgh$ .
Substitute your values in the equation and find
$L = 0 - m g h = - (14 k g \cdot 9.81 \frac{m}{s^{2}} \cdot 2 m) = - 274.68 J$ $L=0-mgh=-(14kg*9.81m/s^2*2m)=-274.68J$ .
That's all.

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How much work does it take to raise a $14 k g$ $14 kg$ weight $2 m$ $2 m$ ?

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How much work does it take to raise a 14kg14 kg weight 2m2 m ?

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Explanation:

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How much work does it take to raise a $14 k g$ $14 kg$ weight $2 m$ $2 m$ ?