(a) What is the angular speed ω about the polar axis of
a point on the Earth's surface at a latitude of 10° N? (Earth
rotates about that axis.)
rad/s
(b) What is the linear speed v of the point?
m/s
(c) What is ω for a point at the equator?
rad/s
(d) What is v for a point at the equator?
m/s
Assumptions:-
Radius fo the earth or
It completes one rotation per stellar day is or
Part-a
Angular speed will be
Part-b
At the given point the radius will be
Now the linear speed at this point will be
by plugging all the values we get
Part-c
The angular speed at all points on the Earth's surface will remain same therefore the angular speed at equator will be
Part-d
The linear velocity at equator will be
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