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Ivahew [28]
3 years ago
8

First right answer gets brainlyWhat is the speed of a man who runs 14 miles in 144 minutes?

Physics
1 answer:
andreev551 [17]3 years ago
7 0

Answer:

10 mph

Explanation:

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rotational kinetic energy of it's particles

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Mike is cutting the grass using a human-powered lawn mower. He pushes the mower with a force of 45 n directed at an angle of 41Â
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work done will be equal to 305.05 J

Explanation:

We have given force exerted F = 45 N

Angle with the horizontal \Theta =41^{\circ}

Distance moved due to exerted force d = 9.1 m

Work done is equal to W=Fcos\Theta \times d , here F is force \Theta is angle with horizontal and d is distance moved due to force

So work done W=45\times cos41^{\circ}\times 9.1=309.05J

So work done will be equal to 305.05 J

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