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Motion in Straight Line
Question
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A man can jump to a height 1.2m at the surface of the earth. How high he can jump on the surface of the moon?

Answer

Acceleration due to gravity at the surface of the moon is g/6.
That is, for the same energy expended, the person can jump 6 times higher on the moon than on the earth. 
Therefore, the height to which the person can jump on the moon = 6 x 1.2 = 7.2 m 

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Some More Questions From Motion in Straight Line Chapter

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?

A particle moves from A to B along three different paths. Is the displacement along three paths different?