A body of mass `m` was suspended by a non-stretched spring, and then set fre without push. The stiffness of the spring is `x`. Neglecting the mass of the spring , find `:`
`(a)` the law of motion `y(t)`, whee `y` is displacement of the body from the equilibrium position,
`(b)` the maximum and minimum tensions of the spring in the process of motion.

A body of mass 100 gm is suspended from a light spring which stretches it by 10 cm. Find the force constant of the spring.

A body of mass 100 gram is suspended from a light spring which stretches it by 10 cm. Find the force constant of the spring.

A body of mass m is suspended from a spring fixed to the ceiling of an elevator car. The stiffness of the spring is x . At the moment t=0 the car starts going up with an acceleration w . Neglecting the mass of the spring , find the law of motion y(t0 of the body relative to the elevator car if y(0)-0 and y(0)=0 . Consider the following two cases : (a) w=const , (b) w=alphat, where alpha is a constant.

A block of mass m suspended from a spring of spring constant k . Find the amplitude of S.H.M.

A block of mass m suspended from a spring of spring constant k . Find the amplitude of S.H.M.

A block of mass m suspended from a spring of spring constant k . Find the amplitude of S.H.M.

A body of mass m is suspended from a massless spring of natural length l . It stretches the spring through a vertical distance y . The potential energy of the stretched spring is