Question

An object of mass 500g is raised to a height of 25mm above the ground.

What will be the potential energy stored in it? (g= 10m/s2)

Answer 1

Answer:

• 0.125 J.

Explanation:

Given:

• Mass (m) = 500g
• Height (h) = 25mm
• Acc. due to gravity (g) = 10m/s²

To find:

• Potential energy (P.E)

Solution:

We have,

• m = 500g
• m = 500/1000Kg

∴ m = 0.5Kg

• h = 25mm
• h = 25mm/1000m

∴ h = 0.025m

We know,

• P.E = mgh

⇒ 0.5 × 10 × 0.025

⇒ 5 × 0.025

∴ 0.125 J is the potential energy stored in it.