A pulley of radius 10 cm turns at 6 revolutions per second. What is the linear velocity of the belt driving the pulley in meters per second?

possible answers:

A. 376.99 m/s

B. 1.67 m/s

C. 166.67 m/s

D. 3.77 m/s

This problem is on the circular motion.

Assuming a basis of 1 sec, there would be 6 revolutions, which is equivalent to 6 circumference of the pulley. One revolution means one circumference, which is 2 (pi) (10cm) or 20 (pi) cm.

Therefore, linear speed is 6 (20) (pi) cm/s or 376.99 cm/s or 3.77 m/s