Compare the efficiencies of single pulley systems and compound pulley systems. Which type of system is more efficient on average and why? Give a reason why the efficiency of a movable pulley is always less than 100%. How does an unlevel dynamic track affect acceleration?
A rope passing through them sustains weights at its ends with masses m1 and m3, while a weight with mass m2 is attached to the axle of the movable pulley. The sections of the rope that are not on the pulleys are vertical. Find the accel...
I think if we take a system of multiple parts then the a in F = ma needs to be the acceleration of the center of mass. In the application I did, I took the acceleration of the pulley P when it should have been the acceleration of the center of mass of P and moving masses 2 and...
Two objects of different masses are connected by a light string passing over a frictionless pulley. When released, the acceleration of the system is determined by: A. the sum of the masses B. the difference in the masses C. the ratio of the masses D. the product of the masses ...
Yes, the equation for Two Blocks and a Pulley can be rearranged to solve for the acceleration of the blocks. This can be done by dividing both sides of the equation by the total mass of the system (m1+m2). The resulting equation is a=(m1-m2)/m1+m2, where a is the acceleration of...
The two masses are each initially 1.80m above the ground,and the massless frictionless pulley is 4.8m above the ground.What maximum height does the lighter object reach after the system is released?[Hint:First determine the acceleration of the lighte
Two blocks(of massesmAandmB)are connected by a massless string that passes over a pulley, as shown below. The coefficient of kinetic friction betweenmAand the inclined plane(at angleθabove the horizontal)isμk.When the system i...
(see Division D1) comprises two pulleys 45, 46 driven in opposite directions at different speeds by a reversible electric motor 49, each pulley freewheeling when rotated in one direction, but being connected to a tubular shaft 25 ... SWW Ralph 被引量: 0发表: 1962年 INCLUDES A TWO-SPEED...
Give two examples of a rigid body where the center of mass lies outside in material of rigid body. View Solution Free Ncert Solutions English Medium NCERT Solutions NCERT Solutions for Class 12 English Medium NCERT Solutions for Class 11 English Medium ...
are connected by a thin cord and pulling up a plane inclined at 30°, with a coefficient of friction of 0.5 between one mass and the inclined plane and negligible friction between the other mass and the piano, the acceleration of the system and tension in the cord c...