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suppose you have a mass m attached to a spring constant k (N/m)

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suppose you have a mass m attached to a spring constant k (N/m). The mass rests on a horizontal frictionless surface. Its equilibrium position is at x= 0. It is pulled aside a distance A and released.

a) What is its speed as it passes the position x=0?

b) What is the net force on the mass at position x=A?

c) Do you expect the mass to have SHM?

d) What is its speed when x=A/4?

Please show all work for all the parts. So I can understand the problem.