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(c) Derive an expression for acceleration …

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(c) Derive an expression for acceleration due to gravity in terms of mass of the earth (M) and universal gravitational constant (G). OR

Posted by Shefali Sharma 3 years, 9 months ago

CBSE > Class 10 > Information Technology (402)

1 answers

Yogita Ingle 3 years, 9 months ago

To calculate the value of g, we should put the values of G, M and R

Where G=universal gravitational constant, G=6.7×10^–11Nm2kg⁻²

mass of the earth, M=6×10²⁴kg,

and radius of the earth, R=6.4×10⁶m.

g=GM/R²

g= [6.67×10⁻¹¹×6×10²⁴] /(6×10⁶)² =9.8m/s²

Thus, the value of acceleration due to gravity of the earth, g=9.8m/s²

Also we know Weight in nothing but the force exerted by the earth with a value of acceleration =9.8m/s2

Now at the poles the value of acceleration due to gravity is higher as compared to the equator as the constant value of g depends on the radius of the earth which decreases when we come down from poles to the equator.

1Thank You

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CBSE > Class 10 > Information Technology (402)