posted by ullas on .
A spring (k = 400 N/m) is hung vertically.
a) If a 5 kg mass is attached to the end of the spring and gently lowered to rest position, what will be the stretch of the spring?
b) If the 5 kg mass is attached and simply dropped, what will be the maximum velocity and the maximum stretch?
c) What will be the period of resulting oscillation?