posted by Rob .
A mass of 2.2kg is placed on a stiff vertical spring which has a spring constant of 950n/m. The object is then pressed against the spring until it has been compressed a distance of 77cm. The mass is then released and is allowed to be thrown up into the air.
How high in the air will the mass be thrown? (13.05m)
What will be the velocity of the mass just as it leaves the end of the spring? (15.5m/s)