Question

A pendulum consisting of a string of length L and a bob of mass m is pulled to the side by a small angle and released. when the string is vertical the bob strikes an identical mass m and the two get attached. Find the time it takes for the spring to become vertical a second time

Answer 1

the time will be v/g

Answer 2

For when it hits the mass and then comes back to the vertical position, the time would be v/g?

Answer 3

yes

Answer 4

For small oscillations, time must be independent of v.

Answer 5

then what will be the answer