Physics l Mechanics l help needed

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?

Let t₁be 2s, t₂be 5s

The velocity after 2 seconds is

V=a ∙ t₁

V=4∙2=8(m/s)

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

Physics

4 years ago

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