Homework Help: Physics

Posted by Anonymous on Saturday, December 8, 2012 at 1:32am.

A spring has an equilibrium length of 20.0 cm and a spring constant of 57.9 N/m. The spring is connected to the underside of the roof of a car and a 0.294 kg block suspended from it. How long (in cm) is the spring when the car is at rest?

How long is the spring if the car is accelerating horizontally at 1.63 m/s2?

Physics - Elena, Saturday, December 8, 2012 at 2:44am
L=0.2 m
(a) mg=kx₁
L₁=L+ x₁=L+ (mg/k)=…
(b) m•sqrt(g²+a²)=kx₂
L₂=L+x₂= L + m•sqrt(g²+a²)/k = …

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