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NNADVOKAT [17]
2 years ago
8

A train moving west with an initial velocity of 20 m/s accelerates at 4 m/s2 for 10 seconds. During this tim

Physics
1 answer:
dusya [7]2 years ago
4 0

Answer:

400m

Explanation:

<h3> x = v_{0}t + \frac{at^{2} }{2}  \\x = 20*10+\frac{4*10x^{2} }{2} = 400m</h3>
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Answer:

She does a work of 689.44 J in the snow.

Explanation:

A force is said to do work when it alters the state of motion of a body. The work of the force on that body will be equivalent to the energy needed to move it.

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Replacing:

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<u><em>She does a work of 689.44 J in the snow.</em></u>

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