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lozanna [386]
2 years ago
13

How much kinetic energy does an 80 kg man have while running at 3 m/s?

Physics
1 answer:
Soloha48 [4]2 years ago
7 0

Hello!

\large\boxed{KE = 360 J}

Use the equation KE = 1/2mv² to solve for the kinetic energy of the man.

We are given the mass and velocity, so plug these values into the equation:

KE = 1/2(80)(3²)

KE = 1/2(720)

KE = 360 J

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H. The length of the shadow is different in evening and in the day. Justify​
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Anit [1.1K]

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Explanation:

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The top of the leaning bell tower at Pisa, Italy, moved toward the south at an average rate of, v = 1.2 mm/yr

1\ mm/yr=3.171\times 10^{-11}\ m/s

Velocity, v=3.80\times 10^{-11}\ m/s

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The height of the tower is equivalent to the radius. Let \omega is the angular speed of the tower’s top about its base. The relation between the angular speed and the angular speed is given by :

v=r\omega

\omega=\dfrac{v}{r}

\omega=\dfrac{3.80\times 10^{-11}\ m/s}{55\ m}

\omega=6.90\times 10^{-13}\ rad/s

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6 0
3 years ago
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Answer:

Sum of the forces will be equal to 3.479 N

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Sum of the forces will be equal to

F=\sqrt{F_1^2+F_2^2+2F_1F_2cos\Theta }

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So sum of the force will be equal to 3.479 N

6 0
3 years ago
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