Question

(b) A body of mass 10 Kg lifted to a height of 20 m from the ground
Find the work done.​

Answer 1

Answer:

Explanation:

Given,

Mass of the body, m = 10 kg

Height from the ground, h = 20 m

To Find,

Work done, w

Formula to be used,

Work done, w = mgh

Solution,

Putting all the values, we get

Work done, w = mgh

⇒ Work done, w = mgh

⇒ Work done, w = 10 × 10 × 20

⇒ Work done, w = 2000 J

Hence, the work done is 2000 J.

Answer 2

Explanation:-

We know that:-

w=mgh

Where,

w denotes work done

m denotes mass

g denotes acceleration due to gravity

h denotes height

Let's put the data in the formula ,we get:-

w=mgh

w=10×10×20

w=2000