What is the neA puck (mass m1 = 4.15 kg) slides on a frictionless table as shown in the figure below. The puck is tied to a string that runs through a hole in the table and is attached to a mass m2 = 12.5 kg. The mass m2 is initially at a height of h = 12.5 m above the floor with the puck traveling in a circle of radius r = 3.32 m with a speed of 12.5 m/s. The force of gravity then causes mass m2 to move downward a distance 1.25 m. Please show work step by step!
What is the new speed of the puck?
What is the change in the kinetic energy of the puck?