Question

In the arrangement (shown in figure), the
mass of the ball is n = 1.8 times that of rod
2. The length of the latter is I = 1 m. The
masses of the pulleys and threads, as well
as the friction, are negligible. The ball is set
at the same level as the lower end of the rod
and then released. Soon the ball be
opposite to the other end of the rod. Write
the nearest integer value of time required in
seconds.​

Answer 1

sorry don't know........