A huge yellow balloon is rising at a rate of 20 feet per second. It is 10 feet above the ground at the time that the back end of a blue car is directly below the bottom of the balloon. The blue car is traveling at 40 feet per second. Determine the rate of change at which the distance between the bottom of the balloon and the point on the ground directly below the back of the blue car one second after the back of the car is directly below the balloon? Round off your answer to the nearest integer.
1. A huge yellow balloon is rising at a rate of 20 feet per second. It is 10 feet above the ground at the time that the back end of a blue car is directly below the bottom of the balloon. The blue car is traveling at 40 feet per second. Determine the rate of change at which the distance between the bottom of the balloon and the point on the ground directly below the back of the blue car one second after the back of the car is directly below the balloon? Round off your answer to the nearest integer. The answer is (Blank) ft/sec.
2.
Bus A and Bus B leave from the same station at the same time. Bus A travels due North at 30 mph, while Bus B travels due East at 40 mph. Find the rate at which the distance between the buses changing after 1 hour. Round off your answer to the nearest integer. The answer is (Blank) mph.
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