1. A balloon is released from the ground 30 feet from an observer. The balloon rises directly upward at the rate of 15 feet per second. When the balloon is 50 feet from the observer, at what rate is the angle of elevation increasing? a. 0.5 rad/s O b. 0.18 rad/s O c. 0.13 rad/sec O d. 1.25x10-3 rad/sec e. None of the choices.

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A: Given,

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A:

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A: Topic name -  projectile motion  A    60.81 feet B.  54.17  feet  C.  195.4   feet

Q: ect one: a. 1 rad/s b. 4 rad/s. 1 C. -rad/s 12 d. 1 =rad/s ܩ 0 30 ft

A: Topic:- application of derivatives

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A: Given: Formula:

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Q: (2.2 x 10) (5 x 104) (1.7 x 10') (2 x 103)

A: 5.

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A:

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A: solution is given below