Monday, May 7, 2012

trig practice

...for those who want/need it.

1.  Consider a 5-12-13 right triangle.  Find the angles.

2.  A right triangle has a 5-m long hypotenuse.  One angle in the triangle is 20 degrees.
Find the other sides.

3.  A "river problem."  A toy motorboat heads south across a 20-m stream.  The current
in the stream is flowing at 2 m/s toward the west.

a.  Draw this problem.
b.  Find the time to cross the stream.
c.  Determine where the boat lands.


ALSO - DON'T FORGET THAT THE MOTION QUIZ IS DUE AT THE BEGINNING OF THE NEXT CLASS.

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