Question

The weight of a body would not be zero :

• A. at the centre of the earth
• B. during a free fall
• C. in interplanetary space
• D. at the surface of the earth

Answer 1

Answer: (D)

at the surface of the earth

Weight of a body is the gravitational force exerted on the body. At the surface of the earth the value of gravitational force is 9.8 N. Thus on the surface of the earth a body weighing 1 kg has a weight equal to 9.8 N independent of its state of motion. Hence a body at surface of the earth cannot be zero since the value of g at earth surface is 9.8 $\frac{m}{s^2}$.