Homework Help: Physics URGENT!!!

Posted by Sarah on Monday, November 19, 2012 at 10:42am.

A spring of negligible mass stretches 2.14 cm from its relaxed length when a force of 8.40 N is applied. A 1.300 kg particle rests on a frictionless horizontal surface and is attached to the free end of the spring. The particle is displaced from the origin to x=5.00 cm and released from rest at t=0.
--> When working this problem you calculator should be in radians mode <--
(a) What is the force constant of the spring? (b1) What is the angular frequency, (b1) What is the frequency,

Physics URGENT!!! - Elena, Monday, November 19, 2012 at 5:03pm
k=F/Δx=8.4/0.0214 = 393 N/m
ω= sqrt(393/1.3)=302.3 rad/s
ω=2πf
f= ω/2π=302.3/2•3.14 =48.14 Hz

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