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Motion In Straight Line

Question

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An ant and an elephant are to project out from gravitational field of the earth. Which of the two must be projected with greater velocity?

Solution

Both the bodies will be projected with the same velocity.
Escape velocity is independent of the mass of the body.

Some More Questions From Motion in Straight Line Chapter

What is rest?

What is motion?

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.

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