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3 years ago

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

Physics

1 answer:

Soloha48 [4]3 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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3 years ago

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Explanation:

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at opposite ends of a canoe 5 m long, whose mass is 20 kg

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x1 = position of the man

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x3 = position of the woman

Now,

Centre of mass = [m1x1 + m2x2 + m3x3] / m1 + m2 + m3

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Now, New center of mass will be;

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= 0.9219858 m { away from the man }

To get how far, the canoe moved;

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3 years ago

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Solving and roundin to the nearest foot:

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