Related Rates: Speeding (69 continued) In Exercise 69 you found that the car’s speed was...

Related Rates: Speeding (69 continued) In Exercise 69 you found that the car’s speed was mph. Enter this expression into a graphing calculator and then replace both occurrences of the line-of-sight distance 0.5 by 0.4 and calculate the new speed of the car. What if the line-ofsight distance were 0.3 mile?

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Related Rates: Speeding A traffic patrol helicopter is stationary a quarter of a mile directly above a highway, as shown in the diagram below. Its radar detects a car whose line-of-sight distance from the helicopter is half a mile and is increasing at the rate of 57 mph. Is the car exceeding the highway’speed limit of 60 mph?