Question

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straight road. As you drive along the road, 5. A cop sits in a parked the cop aims a radar gun at your car. Let s be the distance from your car to the cop in feet. The radar gun measures the rate at which your distance from the cop is changing with respect to time, which is ds/dt. Let x be the distance, in feet, of your car from the point on the road that is closest to the cop, so your car's velocity is dx/dt. car 10 feet from a da in terms of dt ds s, and x dt (a) Draw and label a diagram of this scenario, and write ds Thus the radar gun's measurement of dt always underestimates your car's velocity. (This is why if the radar gun measures ds dx (b) Use part a to explain why dt dt ticket.) a speed greater than the speed limit on the road, the driver deserves a (c) Does the conclusion in part (b) depend some other positive) distance, from the road? on the cop's being 10 feet, rather than car

Answer 1

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