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Motion In Straight Line

Question
CBSEENPH11017592
Wired Faculty App

When a body of mass m is taken from latitude λ1 to λ2 then how much its weight will change? 

Solution
The acceleration due to gravity gλ at any angle of latitude is given by, 
                         straight g subscript straight lambda equals straight g minus Rω squared cos squared straight lambda 
Weight of mass m at latitude straight lambda subscript 1 is m 
                       straight W subscript 1 equals straight m left parenthesis straight g minus Rω squared space cos squared straight lambda subscript 1 right parenthesis 
At latitude straight lambda subscript 2, weight of mass is, 
                      space space straight W subscript 2 equals straight m left parenthesis straight g minus Rω squared cos squared straight lambda subscript 2 right parenthesis 
Change in weight is, 
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   space space space space space space space space space space equals mRω squared left parenthesis cos squared straight lambda subscript 1 minus cos squared straight lambda subscript 2 right parenthesis

Some More Questions From Motion in Straight Line Chapter

Is absolute rest or absolute motion possible?

What is the most essential thing to study the motion of a body?

Can a body be always at rest in some frame?

Can a body be in motion in the frame associated with the body itself?

When an object in motion can be considered as particle or point object?

Can you think of physical phenomena involving the moon in which moon cannot be treated as particle?

A train is crossing the bridge. Can it be taken as a particle?

Can a train be taken a particle? Give an example in support of your answer.

 A particle is moving along curved line in space. Is the motion one dimensional?

State which of the following are examples of one, two or three dimensional motion: 

(a) A kite flying in the sky.

(b) The earth revolving around the sun. 

(c) A train moving along the equator of the earth in clockwise direction. 

(d) Accelerated motion of a particle in a straight line.

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