Question

Find the weight of a stone on the surface of Earth and moon if its mass is

20 kg. (g -9.8 m/s2)

Answer 1

Given,

Mass of a stone on the surface of earth = 20 kg

Acceleration due to gravity = g = 9.8m/s^2

To find,

Weight of the stone.

Solution,

We can simply solve this numerical problem by using the following process:

Mathematically,

Weight of any object (W)

Weight of any object (W) = mass of the object (m) x acceleration due to gravity (g)

Now,

Weight of the stone

= mass of the stone (m) x acceleration due to gravity (g)

= 20 Kg x 9.8m/s^2

= 196 N

Hence, the weight of the stone is equal to 196 N.

Answer 2

Given - Mass of stone

Find - Weight of stone on Earth and moon

Solution - The weight of stone on Earth and Moon is 196 Newton and 32.67 Newton respectively.

The weight on Earth can be calculated by the formula - mass*accelaration due to gravity.

So, weight of stone on Earth = 20*9.8

Weight of stone on Earth = 196 Newton

Now, weight of stone on Moon = 1/6*weight of stone on Earth.

Weight of stone on Moon = 1/6*196

Weight of stone on Moon = 32.67 Newton

Thus, weight of stone on Earth and Moon is 196 Newton and 32.67 Newton respectively.