Suppose, the acceleration due to gravity at the earth's surface is 10 m s−2 and at the surface of Mars it is 4⋅0 m s−2. 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.
Figure
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The part that represents the passenger’s weight as a time function is C.
Explanation:
- The intensity of gravitational field is zero at the point between the Mars and the Earth.
- So, at the same point, the passenger’s weight is zero.
- The C curve in the figure above shows that the mass of the passenger is zero at the point between Mars and the Earth.
- The distance between Mars and Earth is about 54.6 million Km. The distance at average is 225 million Km.
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