A double pulley is free to rotate about its axis through its center. The radii of the two pulleys are   and  . Two cords are wrapped in opposite directions on the pulleys and are attached to masses. As a result, the two tension forces acting on the pulley are equal and acting downwards as shown in the image below so that  .

Two unequal weights are connected by a massless string which passes over a frictionless pulley.  If the pulley has no appreciable mass, the tension in the string is the same on both sides of the pulley; but if the pulley has mass, the tension will not be the same on both sides of the pulley.Group of answer choicesFalseTrue

Consider the pulley and mass system below. The center of mass of the pulley is fixed. Assume the mass accelerates downward when the system is released from rest. What is the direction of the torque caused by the tension in the cord?Group of answer choicesTo the leftUpwardOut of the pageInto the pageDownwardTo the rightNone of these

The figure below shows two blocks suspended by a single cord over a pulley. (Figure 1) The mass of block B is twice the mass of block A, while the mass of the pulley is equal to the mass of block A. The blocks are let free to move and the cord moves on the pulley without slipping or stretching. There is no friction in the pulley axle, and the cord's weight can be ignored.Figure1 of 1Part AWhich of the following statements correctly describes the system shown in the figure?Check all that apply.View Available Hint(s)for Part AThe acceleration of the blocks is zero.The net torque on the pulley is zero.The angular acceleration of the pulley is nonzero.

This type of pulley only changes the direction of the force onlyAmoveable pulleyBfixed pulleyCblock and tackle

In the pulley system shown, if radii of the bigger and smaller pulley are 2 m and 1 m respectively and the acceleration of block A is 5 m/s2 in the downward direction, then the acceleration of block B will be: