Question

What will be the weight of an object on the moon surface if weight on the earth is W and gravitational acceleration at earth is 6 times of gravitational acceleration at moon?
1. 6 W
2. W/6
3. 60W
4. W/60

Answer 1

Correct Answer - Option 2 : W/6

CONCEPT:

• Weight of the body (W): It is defined as the force acting on a body due to gravity.

The weight of a body is calculated by the formula:

W = mg

where W is the weight of the body, m is the mass of the body, and g is the gravitational acceleration.

EXPLANATION:

From the definition, the weight of the body at a place is given by W = mg

it is given that g at earth = 6 × g at the moon

g = 6 g_m

m g = 6 m g_m

W = 6 W_m

here W is the weight at the earth and W_m is the weight at the moon.

Wm = W / 6

• So weight at the moon will be W/6.
• Hence the correct answer is option 2.