Home Physics Motion in a Plane General A person stands on a spring balance at the e…
Physics Motion in a Plane General MCQ (Single Correct)

A person stands on a spring balance at the equator.

A
By what fraction is the balance reading less than his true weight?
B
If the speed of earth's rotation is increased by such an amount that the balance reading is half the true weight, what will be the length of the day in this case?

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The correct answer is:
CHECK THE SOLUTION.

Net force on the spring balance.

So, fraction less than the true weight is

When the balance reading is half the true weight,


Duration of the day is

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