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Motion In Straight Line

Question
CBSEENPH11017206
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Show that acceleration is directly proportional to time. 

Solution

Since it given that,
                          straight nu proportional to space straight t squared
i.e.           space space space space space space space space space space space space space space space space space space space space space space space space space space straight nu equals kt squared therefore space space space space space space space space space straight alpha equals dν over dt equals 2 kt straight i. straight e. space space space space space space space space straight alpha space space proportional to space space straight t
Acceleration of the particle is directly proportional to the time, i.e. acceleration increases linearly with time.

Some More Questions From Motion in Straight Line Chapter

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.

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

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