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AP EAMCET202017 Sep 2020Morning ShiftPhysicsGravitationActual

Acceleration due to gravity

Options

  1. Aincreases with altitude
  2. Bdecreases with altitude
  3. Cis independent of altitude
  4. Dfirst decreases and then increases with altitude

Correct answer

B. decreases with altitude

Step-by-step solution

Acceleration due to gravity above the surface (at altitude) is given as ( aligned & g^ = g (1+ h R_e )^2 =g (1+ h R_e )⁻² & g^ =g (1- 2 h R_e ) (i) aligned ) [By binomial theorem ((1+x)^n=1+n x ), when (x < 1 )] From Eq. (i), it is clear that acceleration due to gravity decreases with altitude.

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