1.

Suppose, the acceleration due to gravity at the earth's surface is 10 m/s2 and at the surface of Mars it is 4.0 m/s2. A 60 kg passenger goes from the earth to the Mars in a spaceship moving with a constant velocity. Neglect all other objects in the sky. Which part of figure (11-Q1) best represents the weight (net gravitational force) of the passenger as a function of time.(a) A .(b) B.(c) C.(d) D.

Answer»

The correct answer is (c) C.

EXPLANATION: 

Since the acceleration due to gravity varies inversely to the square of the distance hence the apparent weight (net gravitational force) of the passenger with respect to time will not be a straight line but a curve. In between the earth and the mars, there will be a point where the gravitational force due to both of the bodies will be equal and opposite, hence the apparent weight will zero but never negative. Out of the three curves in the figure, only curve C fulfills this condition.



Discussion

No Comment Found

Related InterviewSolutions