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scientist
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An effort of 3000kg is required to move a mass of 2000kg in a certain simple machine. If the mass is raised 1.5m while the effort moves 12m, find the actual mechanical advantage.
------------------------------------------------------------quark said:Are you sure about the question?
scientist said:The book gives an answer of 6.54! Do you have an explanation for the book's answer?
-------------------------------------------------------------------------HallsofIvy said:This is not at all what you originally posted!
However, the load divided by the effort is indeed 6.54! As SpaceTiger said, convert the load to Newtons. Once again, the distances given are irrelevant.
scientist said:2000kg x 9.81N
= --------------
3000kg = 3kN
As SpaceTiger stated, mechanical advantage is just load/effort. Distances don't enter into it. If the actual effort force is used in the calculation, friction effects are included.quark said:BTW, mechanical advantage can also be calculated by distances, theoretically. Both should give you same result theoretically. But in real life, resistance and friction come into picture and that is why we base it on forces.
The mechanical advantage in this scenario is 1.5. This means that for every 1.5 meters of effort put in, the load will be raised by 1 meter.
The mechanical advantage is calculated by dividing the load by the effort. In this case, it would be 2000kg/3000kg = 0.67.
It depends on the context. A mechanical advantage of 1.5 can be considered good for certain tasks, but it may not be sufficient for others. It ultimately depends on the specific requirements and limitations of the task at hand.
The mass of the load does not directly affect the mechanical advantage. However, a heavier load may require a higher amount of effort to achieve the desired movement, which could potentially change the mechanical advantage.
Yes, the mechanical advantage can change during the movement. Factors such as friction, resistance, and the distribution of weight can all affect the mechanical advantage throughout the movement process.