Question

With special cases, explain how the acceleration due to gravity is affected at a latitude due to the rotational motion of the earth.

Answer 1

Answer:

g

′

=g−ω

2

Rcos

2

λ

Now, for poles λ=90

o

and for equator λ=0

o

(i) For λ=90

g

pole

′

=g−ω

2

Rcos

2

90

o

=g

g

′

=g

There is not effect on g at the poles.

(ii) For λ=0

g

equator

=g−ω

2

Rcos

2

0

o

=g−ω

2

R

The effect of rotation of the Earth on the value of g at the equator is maximum.