An object is attached to a vertical spring and slowly lowered to its equilibrium position. This stretches
the spring by 10 cm. If the same object is attached to the same vertical spring but permitted to fall
instead, the maximum distance upto which the spring can be stretched is
(1) 5 cm
(2) 10 cm
(3) 20 cm
(4) 40 cm
Answers
Answered by
3
Answer:
When the mass is slowly lowered the spring will extend till the gravitational force on the mass is balanced by the restoring force of the spring. Such that,
mg=kd
k
mg
=d
When the mass is allowed to fall freely it will attain a kinetic energy which will put the mass in an oscillatory about the mean extension of the spring which is also d.
Similar questions