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4 years ago

How do I solve such problem???

Physics

1 answer:

labwork [276]4 years ago

6 0

1). Calculate how long it takes an object to fall 4,000 m after it's dropped. (Use D = (1/2) (g) (T²) . D is 4,000 m. g = 9.8 m/s². Find T .)

2). Calculate how far the object will move HORIZONTALLY in that length of time, if it's moving at 75 m/s. (Distance = (75 m/s) x (time) . )

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An object of mass m is traveling on a horizontal surface. There is a coefficient of kinetic friction  between the object and th

Gnom [1K]

Answer:

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Explanation:

k, the spring constant = ?

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Cancel the 1/2 on both sides

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Lets recall that:

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Therefore

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

So we can say that:

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Make x subject of the formula

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substitute x to equation ii

But first make k in equation ii subject of the formula

1/2kx^2 = μmgx

k = 2μmg/x

Now substitute x

k = 2μmg / ((1/4v^2) / (μg))

k = 2μmg * ((μg) / (1/4v^2))

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8m * (μg/v)^2

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3 years ago

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hoa [83]

Answer:

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