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3 years ago

15

the weight of elephant is 40000N. The area of its feet in contact with the ground is 0.25 m2. Show your working and give the uni

t

1 answer:

horrorfan [7]3 years ago

3 0

Answer:

P=160000Pa

Explanation:

You haven't specified what to calculate

But looking at the parameters I think the question is asking to calculate the pressure exerted.

Pressure=Force/Area

P=40000/0.25m²

P=160000Pa

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Answer:

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Cancel the 1/2 on both sides

mv^2 = μmgx + kx^2

Lets recall that:

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Therefore

1/2kx^2 = μmgx..... equation ii

Let's substitute 1/2kx^2 in equation I for ii

So we can say that:

1/2mv^2 = (μmgx)+ μmgx

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Cancel out m on both sides

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Make x subject of the formula

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substitute x to equation ii

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1/2kx^2 = μmgx

k = 2μmg/x

Now substitute x

k = 2μmg / ((1/4v^2) / (μg))

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3 years ago

julsineya [31]

I don’t know just needed points im sorry

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Y_Kistochka [10]

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Vesnalui [34]

Answer:

C. $\frac{3F}{8}$

Explanation:

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