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Physics

Answered

A girl of weight 500 N climbs on top of a 2.0 m high wall. By how much does her g.p.a increase?

Answer :

MrRoyal MrRoyal

Today at 11:13 PM

Answer:

By 1000 joules

Explanation:

Given

[tex]Weight = 500N[/tex]

[tex]Height = 2.0m[/tex]

Required

By how much does her GPA increases

To do this, we simply calculate the potential energy.

[tex]GPE = mgh[/tex]

Where

[tex]mg = Weight = 500N[/tex]

At the ground level, the height is 0

i.e. [tex]h = 0[/tex]

So:

[tex]GPE = 500N * 0 = 0[/tex]

At:

[tex]h = Height = 2.0m[/tex]

So, we have:

[tex]GPE = mgh[/tex]

[tex]GPE = 500N * 2.0m[/tex]

[tex]GPE = 1000J[/tex]

Calculate the difference

[tex]\triangle GPE = 1000J - 0J[/tex]

[tex]\triangle GPE = 1000J[/tex]

Hence, it increases by 1000 joules

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