Question

Give an example of non-uniform acceleration.

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Answer

A car is travelling along a straight road increases its speed by unequal amounts in equal intervals of time.

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The table given below shows distance (n cm) travelled by bodies A, B and C. Read this data carefully and answer the following questions. Distance (in cm) covered by different bodies.
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1stSecond 20 20 20
2ndSecond 20 36 60
3rdSecond 20 24 100
4thSecond 20 30 140
5thSecond 20 48 180

(i) Which of the bodies is moving with (a) constant speed? (b) constant acceleration? (c) non-uniform acceleration? (ii) Which of the bodies covers (a) maximum distance in 3rd second? (b) minimum distance in 3rd second?

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