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Chapter 8: Q. 61 (page 536)
Make up an applied problem that requires using the Law of Cosines.
Applied problem that requires using the Law of Cosines .
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Determining the Height of an Aircraft Two sensors are spaced 700 feet apart along the approach to a small airport. When an aircraft is nearing the airport, the angle of elevation from the first sensor to the aircraft is 20掳, and from the second sensor to the aircraft it is 15掳. Determine how high the aircraft is at this time.
an object attached to a coiled spring is pulled down a distance a from its rest position and then released. Assuming that the motion is simple harmonic with period T, write an equation that relates the displacement d of the object from its rest position after t seconds. Also assume that the positive direction of the motion is up:
In the given problem solve the triangle using either the law of sines or law of cosines-
Given only the three sides of a triangle, there is insufficient information to solve the triangle .
the displacement d (in meters) of an object at time t (in seconds) is given
(a) Describe the motion of the object.
(b) What is the maximum displacement from its resting position?
(c) What is the time required for one oscillation?
(d) What is the frequency?
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