Q: A student is experimenting with a spring and wants to launch an object attached to the spring at 10 m/s. The spring is compressed and the object, with a mass of 1 kg, is placed at the end of the spring for launch. If the spring constant is 2500 N/m, how much does the spring need to be compressed to launch the object at the desired velocity?
A		0.2 cm
B		5 cm
C		20 cm
D		25 cm

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