Question

A book of mass 1 kg is raised through a height h the potential energy is increased by 49 find the height raised

Answer 1

Answer:

Solution :

The increase in potential energy = mgh

That is, mgh = 49 J ⇒ (1)(9.8)h = 49 J

The height raised, h =499.8=5m

Answer 2

Answer:

• Height raised is 5 m.

Explanation:

Given

• Increase in potential energy (P.E) = 49 J
• Mass (m) = 1 Kg
• Acceleration due to gravity (g) - 9.8 m/s²

To find

• Height (h)

Solution

• P.E = mgh
• 49 = 1 × 9.8 × h
• h= 49/9.8
• h = 5

Hence, the height raised is 5 m.