3 years ago

What is the kinetic energy of a 14kg object traveling at 10m/s

Physics

1 answer:

Sauron [17]3 years ago

5 0

Answer:

Explanation:

kinetic energy=1/2*mass*velocity^2

=1/2*14kg*10^2

=7*100

=700 joule

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SVETLANKA909090 [29]

Answer:11 km/s

Explanation:

Given

Escape velocity at the surface of earth is 11 km/s

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Escape velocity at the surface of earth

$11=\sqrt{\frac{2GM}{R}}$ --------------------1

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Three students have been studying relative motion and decide to do an experiment to demonstrate their knowledge. The experiment

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Answer with Explanation:

We are given that

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Let $\theta$ be the angle .

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$cos\theta=\frac{12.6}{30}=0.42$

$\theta=cos^{-1}(0.42)=65.165^{\circ}$

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$S=\frac{v^2-v^2_0}{2a}=\frac{0-(30 sin65.165)^2}{2(-9.81)}$

$S=37.78 m$

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3 years ago

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