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Question

(i) Uniform retardation
(ii) Zero acceleration
(iii) Uniform poistive acceleration

Which of the following is true?


A

(i) - C

(II) - A

(III) - B

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B

(I) - C

(II) - B
(III) - A

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C

(II) - A

(I) - C

(III) - B

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D

(III) - C

(II) - B

(I) - A

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Solution

The correct option is B

(I) - C

(II) - B
(III) - A


Acceleration is defined as the rate of change of velocity. In graph A, we can see that the slope of the graph is increasing, hence the speed is increasing with time. Thus the graph represents uniform acceleration.

In graph A, the slope is positive, hence it has uniform positive acceleration.

In graph B, the slope is 0 i.e. the speed does not change with time. Hence the acceleration is zero.


In graph C, the slope is negative, hence it has uniform retardation.


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