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4 years ago

I lift a 100 kg mass to a height of 5 meters, how much work would i have none?

Physics

1 answer:

defon4 years ago

3 0

Work=mass×gravity due to acceleration ×height
Work=100×9.8×5
Work=4900J

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3 years ago

Jon and Jim push a dead car forward to the gas station. Jon pushes with 90N while Jim pushes 80 N.

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The resultant of the two forces is about 170 N.

<h3>What is the resultant force?</h3>

The term resultant force has to do with the single force that has the same magnitude and direction as two or more forces acting together.

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Learn more about resultant force:brainly.com/question/16380983

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2 years ago

A completely inelastic collision occurs between two balls of wet putty that move directly toward each other along a vertical axi

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Answer:

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Mass of the other ball, $m_2=2\ kg$

Speed of the other ball, $v_2=-12\ m/s$ (downward)

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$V=\dfrac{m_1v_1+m_2v_2}{m_1+m_2}$

$V=\dfrac{3\times 20+2\times (-12)}{3+2}$

V = 7.2 m/s

Let h is the height reached by the combined balls of putty rise above the collision point. Using the conservation of energy as :

$mgh=\dfrac{1}{2}mV^2$

$h=\dfrac{V^2}{2g}$

$h=\dfrac{7.2^2}{2\times 9.8}$

h = 2.64 meters

So, the height reached by the combined mass is 2.64 meters. Hence, this is the required solution.

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3 years ago

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2 years ago

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Ammonia, Bananas, Bleach,
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4 years ago

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