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Physics l Mechanics l help needed

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Starting from rest on your bike, you go in a straight line with a=4m/s^2 for 2 seconds. Then you pedal at constant velocity for another 5s. What's your final velocity?
asked Jul 13, 2017 in Physics by Gloria

1 Answer

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Let t1 be 2s, t2 be 5s

The velocity after 2 seconds is

V=a ∙ t1


The final velocity is equal to velocity after 2 seconds, because during last 5 seconds the velocity was constant.

So the answer is:

The final velocity is 8 m/s

answered Jul 13, 2017 by admin (2,270 points)