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Aleksandr-060686 [28]
3 years ago
11

If you lift one load up two stories, how much work do you do compared to lifting one load up only one story?

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

Answer:

<em>D)Twice as much</em>

Explanation:

Work: This is the product of force and distance along the direction of the force. The S. I unit of work is Joules (J)

Energy: Energy is the ability or the capacity to perform work. Energy and work can be interchange during calculation.

E = W = mgh.................................... Equation 1

Where m = mass of the load, h = height of one story, g = acceleration due to gravity.

<em>constant: g = 9.8 m/s²</em>

When the load is lift up only one story

W = 9.8mh..................... Equation 2

But when the load is lifted through two story,

height = 2h

W = 19.6mh .................... Equation 3

Comparing Equation 2 and equation 3,

It shows that the work done to lift the load up two story is twice the work done to lift the load up one story.

<em>The right option is D)Twice as much</em>

<em></em>

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