Question

24. An object weighs 18 N on the
surface of the earth, its weight on
the surface of the moon will be

3N
18 N
12 N
6 N​

Answer 1

Explanation:

acceleration due to gravity on moon is 1/6 times g , acceleration due to gravity on earth.

therefore weight on moon will be 18 /6 = 3 N

Answer 2

Correct QuEstion: An object weighs 18 N on the surface of the earth, its weight on the surface of the moon will be

Provided that:

• Object is on surface of earth
• Weight on earth = 18 N

To calculate:

• Weight of same object on moon

Solution:

• Weight of the same object on the moon is 3 Newton

Using concept:

• Formula to calculate weight of the object on the moon

Using formula:

Weight of the object on the moon is given by the mentioned formula:

${\small{\boxed{\underline{\sf{\dfrac{1}{6} \times it's \: weight \: on \: earth}}}}}$

Required solution:

$:\implies \sf Weight \: on \: moon \: = \dfrac{1}{6} \times it's \: weight \: on \: earth \\ \\ :\implies \sf Weight \: on \: moon \: = \dfrac{1}{6} \times 18 \\ \\ :\implies \sf Weight \: on \: moon \: = \dfrac{1}{\cancel{{6}}} \times \cancel{18} \: (Cancelling) \\ \\ :\implies \sf Weight \: on \: moon \: = 3 \: Newton$

On moon it's weight wil be 3 N. Therefore, option A is correct!