1. A mass having a weight of 8 pounds stretches a spring 8 inches. The mass is released at a point 2 feet above the equilibrium position with a velocity of 4 feet per second downward. a) Find the equation of motion in the form x(t) =Asin(+) where 0<<2. Express the value of A and mas exact values and express in radians accurate to 4 decimal places. b) Find the time the mass crosses the equilibrium position the first time the mass is headed upwards. You must solve for this algebraically.

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Q: Number 6

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