Question

An object attached to a 0.5 m string completes 4 rotations in one second. find the linear velocity(m/s) and the angular velocity(rad/s).

Answer 1

2π radians in each circle, so the angular speed is 8π rad/s

2π*0.5 = π meters in each circle, so the linear speed is 4π m/s

Answer 2

B