(1 pt) A mass is oscillating on the end of a spring. The distance, y , of the mass from its equilibrium point is given by the formula


y=5zcos(6wt)
where y is in centimeters, t is time in seconds, and z and w are positive constants.

How many oscillations are completed in 1 second?
If anyone can help me it would be appreciated. I can't get this problem and its due at 11 pm est (3:45) !