With a mass of 2.0 kg, the ball B (vB1) = 2.4m/s and rotates in an orbit with a radius of r1 = 0.8 m. From this moment on, the rope attached to it is 1.2m / s. Find the velocity of ball B at the...

Extracted text: With a mass of 2.0 kg, the ball B (vB1) = 2.4m/s and rotates in an orbit with a radius of r1 = 0.8 m. From this moment on, the rope attached to it is 1.2m / s. Find the velocity of ball B at the moment r2 D 0.5 m since it is pulled with its velocity Vr = as shown in the figure. Also calculate the work required to pull the rope. %3D


Extracted text: 3D0.8m B