You pull straight up on the string of a yo-yo with a force 0.235 N, and while your hand is moving up a distance 0.18 m, the yo-yo moves down a distance 0.70 m. The mass of the yo-yo is 0.025 kg, and...

You pull straight up on the string of a yo-yo with a force 0.235 N, and while your hand is moving up a distance 0.18 m, the

yo-yo moves down a distance 0.70 m. The mass of the yo-yo is 0.025 kg, and it was initially moving downward with speed

0.5 m/s and angular speed 124 radians/s.

(a) What is the increase in the translational kinetic energy of the yo-yo?

(b) What is the new speed of the yo-yo?

(c) What is the increase in the rotational kinetic energy of the yo-yo?

(d) The yo-yo is approximately a uniform-density disk of radius 0.02 m. What is the new angular speed of the yo-yo?