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A) Positive acceleration → A bike moving with increasing speed.

b) Negative acceleration → Decreased speed of bike.

c) Uniform acceleration → Freely falling body.
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1)The motion of a freely falling body.
2)The motion of a bicycle going down the slope of a road when the rider is not pedalling and wind resistance is negligible.
3)The motion of ball rolling down an inclined plane.

1)When a travelling at initial velocity of 10 m/s applies brake and brings the car to rest in 5 seconds
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