A pulley is a simple machine consisting of at least one axle and rope that can be used to pull a weight. There are actually three...
A single movable pulley is able to move over the rope through the groove. Its axis of rotation is not fixed. One end of the rope is fixed and effort is applied to the other end of the rope. The load that is to be moved is hung on a hook of the pulley. It is used to move...
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A movable pulley, on the other hand, offers a mechanical advantage of two. This means that users must apply only half as much force as that generated by the load in order to lift this load successfully. The effort of lifting appears easier, and in actuality, it is easier. Compound pulle...
In automobiles, aharmonic balanceris a drive component that connects to the engine crankshaft. Often called crankshaft damper, torsional damper or vibration damper, the harmonic balancer helps reduce engine vibration. Sometimes, a harmonic balancer also works like a pulley for drive belts. ...
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Explain how the tension changes..[2](c)When the pulley system is used, the work done by the force is greater than the gravitational potential energy gained by the load.(i) Suggest one reason for this...[1](ii) Suggest one advantage for using the pulley system.*.*+[1] 相关知识点:...
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The Reasons For a Clutch System Clutches are useful in devices that have two rotating shafts, including cars. One of the shafts is typically driven by a motor or pulley, and the other shaft drives another device. The clutch connects the two shafts so that they can either be locked togethe...