3 years ago

1. To get to school, a girl walks 1 km North in 15 minutes. She

Physics

1 answer:

yulyashka [42]3 years ago

3 0

Answer:

Average velocity of the girl is 1.25 m/s.

Explanation:

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<h2>Answer:</h2>

<em><u>Velocity of throwing arrow = 43.13 m/s.</u></em>

<h2>Explanation:</h2>

In the question,

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So,

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Also,

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So,

Final horizontal velocity = v.cos20°

Final vertical velocity = v.sin20°

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Also,

$v=u+at\\vsin20=0+9.8(t)\\t=\frac{v.sin20}{9.8}$

So,

We can say that,

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3 years ago