SAT1000 - P329

Geometry Level pending

As shown above, the circle has radius r=1 mr=1\ m, OO is its center. At t=0t=0, OO is at (0,1)(0,-1), and it is moving at v=1 m/sv=1\ m/s upwards along the y-axis. Let x(t)x(t) be the length of the arc above the x-axis, f(t)=cos(x(t))f(t)=\cos (x(t)).

For 0t10 \leq t \leq 1, what is the best graph for f(t)f(t)?


Have a look at my problem set: SAT 1000 problems

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