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2 years ago

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because the snow suddenly gets too slushy, you decide to carry your 100-newton sled the rest of the way home. How much workdo yo

u you do when you pick up your sled, lifting it 0.5meter upward? How much work do you do to carry the sled if your house is 800 meters away?

1 answer:

quester [9]2 years ago

3 0

When you lift it the work is 50 joules. When heading home the work is 80000joules

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Explanation:

Given

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$h=52.92\times \left ( t-2.7\right )+\frac{g\left ( t-2.7\right )^2}{2}$ ---2

Equating 1 &2 we get

$\frac{gt^2}{2}=52.92\times \left ( t-2.7\right )+\frac{g\left ( t-2.7\right )^2}{2}$

$\frac{g}{2}\left ( t-t+2.7\right )\left ( 2t-2.7\right )-\left ( t-2.7\right )52.92=0$

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