Suppose a bicycle was coasting on a level surface, and there was no friction. What would happen to the bicycle?
A.
It would slow down until it finally came to a stop.
B.
It would slow down but would never stop.
C.
It would speed up since there is no friction.
D.
It would keep going at constant speed.
Answers
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Answer:
D
Explanation:
As there is no friction on the bicycle, there would be no force given by the surface to resist the motion of the cycle. So, it would continue going at a constant speed. But if there is too too too much air resistance, or the air is flowing strongly against the direction of the cycle, then there are chances that the cycle would slow down and finally stop. But if there is no such atmospheric pressure, then it would continue going on the frictionless surface.
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