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Question

Choose the correct option:
i. Accelerated motion means acceleration and velocity have same direction.
ii. It is possible that particle have zero acceleration with non-zero velocity.
iii. When acceleration of the particle is positive, it is under accelerated motion.

A
Statement (i), (ii) and (iii) are true.
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B
Statement (i) and (ii) are true.
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C
Statement (ii) and (iii) are true.
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D
Statement (i) and (iii) are true.
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Solution

The correct option is B Statement (i) and (ii) are true.
i. In accelerated motion, velocity and acceleration have same direction.
ii. Yes, it is possible that particle have zero acceleration with non-zero velocity as in the case like particle is moving with constant velocity.
iii. It is not true that a particle has positive acceleration will be considered under accelerated motion.
for example: Suppose a car is accelerating in reverse direction, if forward direction is positive then the backward or reverse direction will be negative, so, in such case acceleration will be negative but the car is still accelerating.

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