Čonsider a double pulley system which is in a stationary lab. The system is shown in the figure. The two hanging masses are m1 = 51 kg and m2 = 1.5 kg. The string has a mass density of 55 g/m, which is much smaller than either of the hanging masses, and there is no friction in the pulleys. %3D leftward maving pulse relative to string my Table (a) What is the acceleration of the string, relative to the lab? A student disturbs the string, setting up a wave which travels as shown in the figure. In the frame of the lab, what is the velocity (in meters per second, with the positive direction toward the heavy mass) of the (b) wave on the string after t 1.1 s?

Čonsider a double pulley system which is in a stationary lab. The system is shown in the figure. The two hanging masses are m1 = 51 kg and m2 = 1.5 kg. The string has a mass density of 55 g/m, which is much smaller than either of the hanging masses, and there is no friction in the pulleys. %3D leftward maving pulse relative to string my Table (a) What is the acceleration of the string, relative to the lab? A student disturbs the string, setting up a wave which travels as shown in the figure. In the frame of the lab, what is the velocity (in meters per second, with the positive direction toward the heavy mass) of the (b) wave on the string after t 1.1 s?