A ball on a spring is puled B inches above its rest Anertsec

A ball on a spring is puled B inches above its rest Anertseconds, the ball\'s distance, d, in inches from its restposition is given by the equation below position and then rele da 8cos Find all values oft for whichthe ball is 4 inches above its rest position. Give a general formula for all the solutions by adding multiples of some positive integer n. Type your answer in radians. Use integers or fractions for any numbers in the expression. use a comma to separate answers as needed.)

Solution

d=8cos(pi/3)t

4=8cos(pi/3)t

cos(pi/3)t=1/2

(pi/3)t=cos^-1(1/2)

(pi/3)t=pi/3

t=1sec