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Gravitation — Physics STD 12 Science — Question

Bihar BoardEnglish MediumSTD 12 SciencePhysicsGravitation1 Mark
Question
Suppose, the acceleration due to gravity at the earth's surface is 10ms-2 and at the surface of Mars it is 4⋅0ms-2. A 60kg 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 best represents the weight (net gravitational force) of the passenger as a function of time?

  1. A
  2. B
  3. C
  4. D
✓

Answer

  1. C

Explanation:

At one point between the Earth and Mars, the gravitational field intensity is zero. So, at that point, the weight of the passenger is zero. The curve C indicates that the weight of the passenger is zero at a point between the Earth and Mars. 

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