- #1
AlexisFair
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Homework Statement
Please check the attachments as to view the questions.
Homework Equations
Ek= 1/2 mv^2
EPSpring= 1/2 kx^2
The Attempt at a Solution
A) EPSpring= 1/2 kx^2
1/2 (100)(0.11) ^2
=0.605 JB) Is ok I understand it.
C)
EKO=EKFEPSpring(Initial) + EK(Initial) = EPSpring(Final) + EK(Final)
½ kx^2 + ½ mv^2 = ½ kx^2 + ½ mv^20.605 J + 0 J = ½ (100) (0.055) ^2 + ½ (0.065) v^2V= 3.74 m/s
Is this correct? Also, for EK(Initial) it is 0 J because it is being "compressed" 11 cm and thus it has no speed, correct?