Explain following type of motion with one example of each (i) Acceleration is positive (ii) Accelera

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7. MOTION

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Explain the following type of motion with one example of each

$(i)$ Acceleration is positive

$(ii)$ Acceleration is negative

$(iii)$ Acceleration is zero.

Option A

Option B

Option C

Option D

Solution

$(i)$ Here, the motion is accelerated motion. A car moving on a road with increasing velocity

$(ii)$ Here, the motion is retarded motion. Brakes applied to a moving car.

$(iii)$ Here, the motion is uniform motion. Motion of the second's hand a clock.

Standard 9

Science

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