for h=1,
1 = 7 cos(pi/3 t)
cos(pi/3 t) = 1/7
pi/3 t = 1.427
t = 1.363
and so on for the others
The equation h=7 cos{pi/3 t} models the height h in centimeters after t seconds of a weight attached to the end of a spring that has been stretched an then released.
(C).Find the times at which the weight is at a height of 1 cm,of 3 cm,and of 5 cm below the rest position for the second time .Round your answers to the nearest hundredth.
1 answer