A 0.30 kg mass is suspended on a string. In equilibrium the mass stretches the spring 2.0 cm downward. The mass is then pulled an additional distance of 1.0 cm down and released from rest.
(a) Write down its equation of motion.
(b) Calculate the velocity of the mass at T/3 s.

Question

A 0.30 kg mass is suspended on a string. In equilibrium the mass stretches the spring 2.0 cm downward. The mass is then pulled an additional distance of 1.0 cm down and released from rest.
(a) Write down its equation of motion. 
(b) Calculate the velocity of the mass at T/3 s.

Quizplus · Accepted Answer

The Answer of A 0.30 kg mass is suspended on a string. In equilibrium the mass stretches the spring 2.0 cm downward. The mass is then pulled an additional distance of 1.0 cm down and released from rest.
(a) Write down its equation of motion. 
(b) Calculate the velocity of the mass at T/3 s.

A 030 Kg Mass Is Suspended on a String