A pulley hangs from the ceiling without moving. Over it$,$ a light string hangs with a mass

m$1$ at one end and a second pulley at the other. Over the second pulley hangs a second light

string, with a mass m$2$ at o ne end, and with the other end attached to the floor. There is

gravity g$,$ and in the following, you may ignore kinetic friction and assume that the pulleys are

massless. The pulleys turn with the strings without sliding.

a$)$ What is the relation between the two accelerations of the two masses m$1$ and

m$2?$