Reference no: EM1347814

Q. A 240 g ball and a 130 g ball are connected by a 32 cm-long massless, rigid rod. The structure rotates about its center of mass at 150 rpm.

What is the speed of the 130g ball?

Q. A child pulls a 3.00-kg sled across level ground at constant velocity with a light rope that makes an angle 34.0° above horizontal. The tension in the rope is 5.00 N. Assuming the acceleration of gravity is 9.81 m/s2, what is the coefficient of friction between the sled and the ground?