Q.
A person whose mass is $100\, kg$ travels from Earth to Mars in a spaceship. Neglect all other objects in sky and take acceleration due to gravity on the surface of the Earth and Mars as $10 \,m / s ^{2}$ and $4 \,m / s ^{2}$ respectively. Identify from the below figures, the curve that fits best for the weight of the passenger as a function of time.
Solution: