the equation models the height h in centimeters after t seconds of a weight attached to the end of a spring that has been stretched and then released

H = 7 cos { pie over 3 } t

a. solve for equation for t
b. find the times at which the weight is first at a height of 1 cm, of 3 cm and of 5 cm above the rest position. round it to the nearest hundredth the answer
c. find the times at which the weight is at a height of 1 cm, of 3 cm and 5 cm below the rest position for the second time. round the answer to the nearest hundredth

Question

the equation models the height h in centimeters after t seconds of a weight attached to the end of a spring that has been stretched and then released

H = 7 cos { pie over 3 } t

a. solve for equation for t
b. find the times at which the weight is first at a height of 1 cm, of 3 cm and of 5 cm above the rest position. round it to the nearest hundredth the answer
c. find the times at which the weight is at a height of 1 cm, of 3 cm and 5 cm below the rest position for the second time. round the answer to the nearest hundredth

irishboy123 · Answer

H/7 = cos π/3 t; π/3 t = arccos H/7; etc  make sense????  then:

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