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miv72 [106K]
3 years ago
15

How much work is done by the gravitational force on the block?

Physics
1 answer:
KatRina [158]3 years ago
3 0

Answer:

Work = Mass * Gravity * Height and is measured in Joules. Imagine you find a 2 -Kg book on the floor and lift it 0.75 meters and put it on a table. Remember, that “force” is simply a push or a pull. If you lift 100 kg of mass 1-meter, you will have done 980 Joules of work.

Explanation:

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A sports car traveling along a straight line increases its speed from 19.8 mi/h to 59.9 mi/h.a. What is the ratio of the final t
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given,

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a) initial momentum = m v₁

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  final final momentum = m v₂

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b) initial kinetic energy= 1/2 m v₁²

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  final kinetic energy= 1/2 m v₂²

                   K₂ = 1794.005 m

      ratio = \dfrac{K_2}{K_1}

              =\dfrac{1794.005 m}{196.02 m}

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