Question

A person whose mass is 100 kg travels from Earth to Mars in a spaceship. Neglect all other objects in the sky and take acceleration due to gravity on the surface of the Earth and Mars as 10 m/s² and 4 m/s² respectively. Identify from the below figures, the curve that fits best for the weight of the passenger as a function of time.

Options

• b

• a

• c

• d

Answer 1

c

Explanation:

In the diagram below, N represents the neutral point where the effect of gravity is zero.

On the surface of the Earth W = 100(10) = 1000 N

On the surface of Mars W = 100(4) = 400 N

Only curve c in the given figure has a neutral point.