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Motion In Straight Line

Question
CBSEENPH11017633
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Choose the correct alternative:
The formula - GMm open parentheses 1 over straight r subscript 2 minus 1 over straight r subscript 1 close parentheses is more/less accurate than the formula mg (r2-r1) for the difference of potential energy between two points r2 and r1 distance away from the centre of the earth.

Solution
More.

Some More Questions From Motion in Straight Line Chapter

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.

Define distance.

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