Homework Help: phy

Posted by mas on Sunday, September 26, 2010 at 10:30am.

A vertical spring (ignore its mass), whose spring stiffness constant is 1000 N/m, is attached to a table and is compressed down 0.130 m.
(a) What upward speed can it give to a 0.200 kg ball when released?
m/s
(b) How high above its original position (spring compressed) will the ball fly?
m

phy - bobpursley, Sunday, September 26, 2010 at 12:07pm
Energy in compressed spring: 1/2 k .13^2

then, KEreleased=energycompressed spring, from that , find vi

how high? Mgh=1/2 k .13^2
phy - Derrick, Thursday, March 28, 2013 at 4:01pm
on a.) it should be 1/2mV^2=1/2kx^2, however whenever I do this problem on my homework I get it wrong. Im not sure why.

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