A 2-kg particle is acted upon by a spring with force constant k = 100 N/m while being influenced by a friction. The static friction force and the kinetic friction force are both 50 N in magnitude. The object is released from rest at x = 5.0 m, with the spring stretched by 5.0 m.

What is the speed of the object when it reaches x = 0 for the first time?

Question

A 2-kg particle is acted upon by a spring with force constant k = 100 N/m while being influenced by a friction.  The static friction force and the kinetic friction force are both 50 N in magnitude.  The object is released from rest at x = 5.0 m, with the spring stretched by 5.0 m.

What is the speed of the object when it reaches x = 0 for the first time?

anonymous · Answer

$$10\sqrt{10}$$ metres per second?