If there is no friction on a pulley, then the MA will always be less than the VR.Question 18Answera.Falseb.True

A moveable pulley provides MA whereas the fixed pulley changes the direction of the force.Question 2Answera.Trueb.False

An object of mass m1 = 4.90 kg is connected by a light cord to an object of mass m2 = 3.00 kg on a frictionless surface (see figure). The pulley rotates about a frictionless axle and has a moment of inertia of 0.440 kg · m2 and a radius of 0.320 m. Assume that the cord does not slip on the pulley.An illustration shows a rectangular block of mass m2 on the horizontal surface of a table. Block m2 is connected to another rectangular block of mass m1 by a cord that runs over a pulley placed diagonally at the corner of the horizontal surface of the table. The rectangular block of mass m1 is suspended vertically by the side of the tabletop. The part of the cord that extends from m1 to the pulley is labeled T1, and the part of the cord that extends from m2 to the pulley is labeled T2.(a) Find the acceleration of the two masses. m/s2(b) Find the tensions T1 and T2.T1 = NT2 = N

Why is the mechanical advantage of using a single pulley always 1? Assume there’s no friction. A. The input force is in a different direction than the output force. B. The input force is less than the output force. C. The input force is greater than the output force. D. The input force is equal to the output force.

Two masses m1 and m2 are connected by a string over a frictionless pulley of negligible mass. The masses are released from rest. Air resistance is negligible.Mass m2 accelerates downwards at g2 . What is m1m2 ?

A fixed pulley carries a weightless thread with masses m1and m2at its ends. There is friction between the thread and the pul-ley. It is such that the thread starts slipping when the ratio m2im1 == ry a. Find:(a) the friction coefficient;