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A body is initially at an origin, O, and at that instant has a velocity of 14m/s.
The acceleration, t seconds later, is (3t -11) m/s².
Find the velocity of the body when it is next at O.
Answer is -6m/s
So the body will be next at O at t = 4 s. Put this into the equation for v and find v.
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how do you know the body will be next at O at t = 4 s.
Set s = 0 and find t.
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