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2 years ago

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A boulder with a weight of 780 N is resting at the edge of a cliff that rises 123 m above the ground. What is the gravitational

potential energy of the boulder?

1 answer:

-Dominant- [34]2 years ago

3 0

Potential energy U = mgh

Given h = 123 m,
mg = F = 780 N

Then
U = (123)(780)
= 95940
= 9.59 x 10^4

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Explanation:

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Now, we assume that

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Since, velocity of wheel is u it will cover distance u in unit time(min)

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Now, rotation per minute of inner wheel is calculated as follows.

n = $\frac{V}{2 \pi r \times (1 - \frac{d}{R})}$

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Explanation:

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