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Chapter 8: Q. 12 (page 527)
Solve each triangle.
The solution is
We know,
Now use Law of Sines -
role="math" localid="1646915361354" and role="math" localid="1646915377314"
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The displacement d (in meters) of an object at time t (in seconds) is given as
(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?
In the given problem solve the triangle using either the law of sines or law of cosines-
Rework Problem 8 under the same conditions except that, at time t = 0, the object is at its resting position and moving down.
Rework Problem 7 under the same conditions except that, at time t = 0, the object is at its resting position and moving down.
Cost of a Triangular Lot The dimensions of a triangular lot are 100 feet by 50 feet by 75 feet. If the price of such land is $3 per square foot, how much does the lot cost?
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