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Question
A bicycle initially moving with a velocity 5.0 m s-1 accelerates for 5 s at a rate of 2 m s-2. What will be its final velocity?
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Solution
Initial velocity of the bicycle, u = 5 m/s
Acceleration = 2 m/s2
Given time, t = 5 s
Let 'v' be the final velocity.
We know that, acceleration = Rate of change of velocity/time
= (Final velocity - Initial velocity)/time
Or 2 = (v - 5)/5
Or, 10 = (v - 5)
Or, v = 5 + 10
Or, v = 15 m/s
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