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Vladimir79 [104]
3 years ago
15

Newton's third law is sometimes summarized as "for every action, there's an equal opposite reaction" but when you jump from eart

h, the earth doesn't jump backwards from you. How does Newton's third law of motion apply?
Physics
1 answer:
STatiana [176]3 years ago
3 0

When you want to jump UP, you push DOWN on the Earth. Then, because of Newton's 3rd law, the Earth immediately pushes UP on you, and this equal, opposite REaction is the force that lifts you up.

==========

By the way . . . . . The question is wrong, wrong, wrong.

When you jump up from Earth, the Earth DOES jump backwards away from you.

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Answer:

\frac{0.065}{r}

Explanation:

The maximum velocity of an object moving in a curve beyond which it will slide off the curve is given by the relationship in equation (1);

v=\sqrt{\mu gr}....................(1)

where \mu is the coefficient of friction between the object and the surface of the curve, g is acceleration due to gravity and r is the radius of the curve.

Given;

v = 0.8m/s

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r = ?

\mu=?

In order to solve for \mu, we can simply make it the subject of formula from equation (1) as follows;

v^2=\mu gr\\hence\\\mu=\frac{v^2}{gr}.................(2)

since we were not given the value of r, we can just substitute other known values, then solve and leave the answer in terms of r.

Therefore;

\mu=\frac{0.8^2}{9.81r}

\mu=\frac{0.64}{9.81r}\\\\\mu=\frac{0.065}{r}

8 0
3 years ago
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denpristay [2]

Answer:

48 kilometers per hour

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144/3 = 48 km/h

3 0
2 years ago
If a cars velocity is slowing down is it considered a positive or negative acceleration?
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Answer:

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We will have the following:

Since it is a white rock, then when in a windowless room with just red light the color that will appear to our eyes is red. Since is the only color to reflect.

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