Posted by **charlie** on Sunday, October 24, 2010 at 10:31pm.

A mass of 0.4 kg, hanging from a spring with a spring constant of 80 N/m, is set into an up-and-down simple harmonic motion. What is the velocity of the mass when at its maximum displacement of 0.1 m?

- College Physics -
**Matthew**, Thursday, November 11, 2010 at 10:34pm
its maximum displacement is also its Amplitude. When an object is in SHM and reaches its A, its velocity is zero.

- College Physics -
**Anonymous**, Tuesday, April 30, 2013 at 12:35pm
1.4 m/s

- College Physics -
**Anonymous**, Wednesday, March 25, 2015 at 2:34am
Total E=1/2KA^2

Kinetic E=1/2mv^2

Kinetic E= Total E

1/2(80)(0.1)^2=1/2(0.40)(v)^2

v=1.4 m/s

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