Question

a stone of mass 2 kg is projected vertically through a height of 10 m. Calculate the potential energy of the stone at that height.[g=10 m/s²]​

Answer 1

• Given

• Mass of the stone = 2 kg
• Height from where the stone is projected vertically = 10 m
• g = 10 m/s²

• To find

• Potential energy

• Solution

We are having the value of mass of the stone, the height from where it is projected. So, by using the formula ⟶ mgh we will find the potential energy.

Using formula,

• U = mgh

where,

• U = potential energy
• m = mass of the body
• g = gravitational energy
• h = height

Substituting the values,

⟶ 2 × 10 × 10

⟶ 200 joule

Therefore, the potential energy of the stone is 200 joule.

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Extra information :

Potential energy : The energy stored in a body due to its position.

• Its S.I. unit is joule.

Kinetic energy : The energy possessed by a body due to its motion.

• Its S.I. unit is joule.