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Motion In Straight Line

Question
CBSEENPH11020554
Wired Faculty App

If ve is escape velocity and vo is orbital velocity of a satellite for orbit close to the Earth's surface, then these are related by

  • straight nu subscript degree equals square root of 2 straight v subscript straight e
  • straight v subscript straight o space equals straight v subscript straight e
  • straight v subscript straight e space equals square root of 2 straight v subscript straight o end root
  • straight v subscript straight o space equals square root of 2 straight v subscript straight e end root

Solution

C.

straight v subscript straight e space equals square root of 2 straight v subscript straight o end root Orbital space velocity space of space satelite space is space given space by straight v subscript straight o space equals space square root of fraction numerator 2 GM over denominator straight R end fraction end root Hence comma space straight v subscript straight e space equals space square root of 2 straight v subscript straight o end root

Some More Questions From Motion in Straight Line Chapter

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.

Define displacement.

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