Question

What is the distance covered by a man on the surface of the moon in one minute if he covers $60m$ distance in one minute on the surface of the earth? (Given that, ${g_m} = \dfrac{{{g_e}}}{6}$)
A. $60m$
B. $60 \times 6m$
C. $\dfrac{{60}}{6}m$
D. $\sqrt {60} m$

Answer 1

Hint:Gravity is the natural phenomenon which brings all things mass, energy, planets, galaxies, light etc. towards one another. There is no effect on the ability of the person to move on the surface of the moon and earth.

Complete step-by-step solution:
Gravity is like a magnet which attracts everything towards it. Gravity can attract people, things, stars, galaxies, energy etc. everything towards it. The range of gravity is undefined or infinite but it becomes weaker when the object moves further away.
The strength of the gravitational field is numerically equal to acceleration of objects under its influence.
The gravity is well explained by Newton’s law of universal gravitation. This law describes gravity as force which causes two bodies to attract each other, states that the force is directly proportional to product of their masses and is inversely proportional to square of distance between them.
According to the question, the man is moving on the surface and covers $60m$ distance in one minute.
As the man is moving on the surface there will be no effect of gravity on his ability to move. So, if he moves on the surface of the moon there will be no effect of gravity. Hence, he will cover $60m$ distance in one minute on the moon too.
Therefore, option (A) is the correct option.

Note:- Gravity is the weakest of four fundamental interactions. It is approximately ${10^{38}}$ times weaker than strong interaction, electromagnetic force is stronger than gravity by ${10^{36}}$ times and weak interaction is stronger than gravity by ${10^{29}}$ times.