A spring is compressed .02m by a 0.5kg rock. The spring and rock are on a frictionless horizontal table.
a) If the spring has a spring constant of 5N/m what acceleration will the rock have when released?
b) How fast will the rock be moving when it reached the equilibrium point?
c)After the equilibruim point the rock moves with a constant velocity
d) If after a few seconds the rock hits a surface with a coefficient of friction of .45 what will its acceleration be now?
For the initial acceleration
F=ma
kx=ma solve for a.
How fast at equilibrium?
1/2 kx^2= 1/2 mv^2 solve for v.
C is true
d. F= ma
mu*mg= ma solve for a.
Thank you so much for both replies! I really appreciate it! You are easily my new favorite person!