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Tcecarenko [31]
3 years ago
8

one object had a mass of 2kg and was lifted at a speed of 2m/s the distance being 10 m, the other had a mass of 4kg and was lift

ed at a rate of 3m/s the distance also being 10m. which object has more potential energy, the gravity being 9.8m/s^2
Physics
1 answer:
ira [324]3 years ago
4 0
Potential Energy = mgh.

1st:   m = 2kg.  PE  = 2* 9.8 * 10 = 196 J.

2nd  m = 4 kg.  PE = 4* 9.8* 10 = 392 J.

Hence the second ball, has more potential energy, because it had the greater mass.
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In boxing, the use of 16-ounce gloves rather than 12-ounce gloves reduces the chance of injury because the force is distributed
mr Goodwill [35]

Answer:

true

Explanation:

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Injury is caused by the application of pressure at a point on the body. The application of pressure takes place via the area of the gloves. Pressure is given by

P=\dfrac{F}{A}

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Let  us consider two bodies having masses m and m' respectively.

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From the above we see that F ∝ mm' and F\alpha \frac{1}{r^{2} }

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Hence the gravitational force f_{2} =G\frac{m m_{2} }{r^{2} }

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Hence the ratio is  \frac{f_{2} }{f_{1} } = \frac{\frac{3}{4}G mm_{1/r_{1} ^2}  }{Gmm_{1}/r_{1} ^2 }

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3 0
4 years ago
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pogonyaev

Answer:

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Explanation:

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