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OpenStudy (anonymous):
Calculus problem: A motorcycle is travelling at a speed of 18m/s when it passes police checkpoint P. It begins to decelerate. Its acceleration, a m/s^2 until it stops is given by a=-2. How many seconds after passing P did the motorcycle take to stop?
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OpenStudy (lgbasallote):
a m/s^2 is the deceleration of the motorcycle?
OpenStudy (anonymous):
yes
OpenStudy (anonymous):
acceleration is rate of change of velocity, i.e loosely understood as v/t
OpenStudy (anonymous):
that should give you a clue
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