Question

A rain drop falls at constant speed. The mass of drop is 10 gm and it fall through a distance
100 m vertically then find the work due to gravity (g = 10 m/s2)

Answer 1

work=force ×displacement
here w=mgh
ie w=10×10×100=10000
if you want answer in Si unit then w=10
because gram to kilogram

Answer 2

Answer:

The work done, W, due to the gravity measured is $10J$.

Explanation:

Given,

The mass of the drop, m = $10g$ = $10\times 10^{-3} kg$ = $10^{-2}kg$.

The height from where the drop falls, h = $100m$

The gravity = $10m/s^{2}$

The work done due to gravity, W =?

As we know,

• The work done due to gravity is given by the equation:
• W = $mgh$

After putting the given values in the equation, we get:

• W = $10^{-2} \times 10\times 100$
• W = $10J$

Hence, the work done due to gravity, W = $10J$.