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1. 1.a A mass is attached to each end of a rope that passesover a pulley suspend

ID: 1722513 • Letter: 1

Question

1. 1.a A mass is attached to each end of a rope that passesover a pulley suspended from the ceiling. The blocks do not havethe same mass. If the rope does not slip on the pulley, then at anyinstant after the blocks start moving, the rope: pulls on bothblocks, but exerts a greater force on the lighter block
pulls on bothblocks and exerts the same magnitude for on both
pulls only thelighter block
pulls on bothblocks, but exerts a greater force on the heavier block
does not pull oneither block 1b. A force with a given magnitude is to be applied to a wheel. Thetorque can be maximized by: applying the forcenear the axle, parallel to a tangent to the wheel
applying the forcenear the rim, radially outward from the axle
applying the forceat the rim, at 45 degrees to the tangent
applying the forcenear the axle, radially outward from the axle
applying the forceat the rim, tangent to the rim Pls try to explain ur answer. I'll rate immediately. Thx

Explanation / Answer

1a) Pulls on both blocks with the same magnitude, since the tensionis the same on both ends of the rope. 1b) The torque is maximized when the force is applied at the rimand tangent to the rim, since =rFSin the radius wouldbe maximized (since it is measured from the axle) and the anglewould also be maximized( ie. sin(90)=1).