Saturday, July 9, 2011

Physics question related to speed and acceleration.?

A car passes by a stationary police officer at a speed of 200km/h. The officer immediately accelerates from rest at a constant acceleration of 6.0m/s2 in an effort to catch up. the driver of the car sees the policeman in her rearview mirror and begins slowing down at a rate of -1.75m/s2, hoping to reach the legally posted value of 120km/h by the time the policeman catches her. If the policeman does not have radar to remotely detect the speed of her car, will the speeding woman receive a ticket or not? Explain any assumptions and be sure to show all of your steps in justification of your conclusion.

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