Homework Help: Physics

Posted by Alicia on Sunday, January 6, 2013 at 10:53pm.

A spring has a constant of 2.4 x 10^2 n/m. What force does it take to stretchmit .8m? How much PE is stored in the spring? Make a graph of the constant from .1 to 1.0 meters.

Physics - drwls, Monday, January 7, 2013 at 8:05am
F = k*x where k = 240 N/m
Plug in x = 0.8 m and solve for F

At this amount of stretch, the P.E. is
(1/2) k x^2 (or (1/2)F*x.)

It makes no sense to make a graph of a constant. Do you mean P.E. or F vs x ?

Anyway, we don't provide graphs here.

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