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A car traveling with an initial velocity of -25 m/s changes velocity to -35 m/s in a time of 10.3s. Is the constant acceleration of the car positive or negative in this problem? Explain why.
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intial velocity=-25m/s final velocity=-35m/s
time=10.3
acceletion=(final velocity-initial velocity)/time
=-10/10.3
=-0.9709m/s^2
deceleration =0.9709
the acceration is negative because the vehicle is decelarating
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Describe methods to remove oxygen from a fire to extinguish flames.
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