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A car traveling at 10 m per s exits an off ramp that is 250 m long at what rate must they decelerate to come to a stop?
Wiki User
∙ 14y ago
Initial speed = 10 m/s.
Final speed = 0 m/s
Average speed = 1/2 (10 + 0) = 5 m/s.
At the average speed of 5 m/s, it will take (250/5) = 50 seconds to stop exactly at the end of the ramp.
Deceleration is (change in speed) divided by (time) = -10/50 = -0.2 m/s2
Wiki User
∙ 14y ago
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