As a pendulum swings the angle theta that it makes with the vertical changes through its swing. The force of gravity pulling on the bob is given by F=mg sin theta, where g is equal to 9.8 m/s^2. If the mass of the pendulum is 0.01kg, what is the force of pulling on the pendulum when it makes a 22.5 degree angle with the vertical?
a. sqrt2-sqrt2/2 N
b. 0.049sqrt-sqrt2N
c. sqrt2-sqrt2/2 N
d. 0.049sqrt2-sqrt2/2 N
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