How much work does it take to lift a $180 k g$ $180 kg$ weight $\frac{4}{3} m$ $4/3 m$ ?

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How much work does it take to lift a $180 k g$ $180 kg$ weight $\frac{4}{3} m$ $4/3 m$ ?

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Answer 1 · 2015-12-31T13:27:21

To lift the mass it takes $2354.4 N$ $2354.4N$ .

Explanation:

You know the formula $L = m g (h 2 - h 1)$ $L=mg(h2-h1)$
At $t = 0$ $t=0$ $h = 0$ $h=0$ , so $L = m g h = 180 k g \cdot 9.81 \frac{m}{s^{2}} \cdot (\frac{4}{3} m)$ $L=mgh=180kg*9.81m/s^2*(4/3m)$
$L = 2354.4 N$ $L=2354.4N$

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How much work does it take to lift a $180 k g$ $180 kg$ weight $\frac{4}{3} m$ $4/3 m$ ?

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