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Motion in Straight Line
Question
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 Does the escape speed of a body from the earth depend on: 

(a) the mass of the body, 

(b) the location from where it is projected, 

(c) the direction of projection, 

(d) the height of the location from where the body is launched?

Answer

The escape velocity is independent of the mass of the body and the direction of projection. It depends upon the gravitational potential at the point from where the body is launched. Gravitational potential depends slightly on the latitude and height of the point, therefore, the escape velocity depends on these factors. 

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Some More Questions From Motion in Straight Line Chapter

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.

Can magnitude of displacement be greater than distance travelled by particle?

A body is thrown with a velocity of 9.8 m/s in the vertical upward direction. What is the velocity after one second?

How does the displacement of a particle change, when reference point for the position is shifted?