Question: A (100 mathrm{~g}) ball attached to a spring with spring constant (2.50 mathrm{~N} / mathrm{m}) oscillates horizontally on a frictionless table. Its velocity is (20.0

A $100 \mathrm{~g}$ ball attached to a spring with spring constant $2.50 \mathrm{~N} / \mathrm{m}$ oscillates horizontally on a frictionless table. Its velocity is $20.0 \mathrm{~cm} / \mathrm{s}$ when $x=-5.00 \mathrm{~cm}$.

a. What is the amplitude of oscillation?

b. What is the speed of the ball when $x=3.00 \mathrm{~cm}$ ?

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