Shovakabir2020idn
Answered

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a
A stone 'X' of mass 2 kg is at the height of 2 m from the ground level
Another similar stone 'Y' of mass 4 kg is at the height of 4 m from the ground
level. What is the difference between their potential energy?
un minutes Calculate​

Sagot :

Kritika3375idn

Answer:

120 joule.

Explanation:

Given

For the stone X

Mass (m) = 2 kg

Height (h) = 2 m

Acceleration due to gravity (g) = 10 m/s²

Then we have the formula to calculate the potential energy

P.E 1 = mgh

= 2 * 10*2

= 40 joule

Now for Stone Y

mass (m) = 4 kg

height (h) = 4 m

acceleration due to gravity (g) = 10 m/s²

Now

P. E2 = mgh

= 4 * 10* 4

= 160 joule

Now the difference between their potential energy is

= P. E2 - P. E 1

= 160-40

= 120 joule

Hope it will help you :)

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