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Monday, June 04, 2018

Prep for lesson on Circular motion


Radians

Since a radian is the angle between two radii with an arc length equal to the radius, there are 2p radians in one complete circle.
1.         Use a calculator to complete the table of q in degrees and radians, sin q,  cos q, and tan q when q has values in degrees shown in the table:

q degree
q in radians
sin q     
cos q
tan q
0.01




0.1




0.5




1




5




10




20




70





When q (in radians) is small what are suitable approximations for:
sin q, tan q, cos q?