0
Air jacks offer a stronger lift than mechinical jacks. They also give you the ability not have to manully crank the jack.
Wiki User
∙ 14y ago
Add your answer:
Earn +20 pts
How do you find the mechanical advantage in science?
mechanical advantage= output force over input force
How is the mechanical advantage of a simple machine calculated?
mechanical advantage= output force over input force times 100
How do you calculate the Mechanical advantage of a lever?
lin over lout
What is the equation for mechanical advantage?
Mechanical Advantage: F(out)/ F(in) Actual Mechanical Advantage is the ratio of Force outputed to Force inputed. (AMA=Fo/Fi) Similarly, IMA (Ideal Mechanical Advantage) = di/do
Is it good to have a high mechanical advantage?
It may be good in some cases. A high mechanical advantage comes at a cost - you need to apply less force, but you need to apply it over a greater distance.
How do you get the mechanical advantage of a pulley?
For a pulley, when is it that the mechanical advantage is greater than 1 and when is it that it is equal to 1? If a rope was hung over a pulley with unequal weights applied to both ends, the larger weight (77kg) would pull the lesser weight (30kg) upward, and so what would the mechanical advantage there be? The thing about this question is that if a rope were hung over a pulley and the tension at each point was the same (neglecting the mass of the rope and pulley), then how is it that if both ends of the rope point downward that the mechanical advantage becomes 2 (if there was just that one pulley)? Is the mechanical advantage any different if someone was applying a force to one end of the rope compared to gravity acting alone?
How do you get the mechanical advantage of the pulley?
For a pulley, when is it that the mechanical advantage is greater than 1 and when is it that it is equal to 1? If a rope was hung over a pulley with unequal weights applied to both ends, the larger weight (77kg) would pull the lesser weight (30kg) upward, and so what would the mechanical advantage there be? The thing about this question is that if a rope were hung over a pulley and the tension at each point was the same (neglecting the mass of the rope and pulley), then how is it that if both ends of the rope point downward that the mechanical advantage becomes 2 (if there was just that one pulley)? Is the mechanical advantage any different if someone was applying a force to one end of the rope compared to gravity acting alone?
Why does a fixed pulley have a mechanical advantage of one and a movable pulley has a mechanical advantage of two?
we find mechanical advantage of pulley by using principle of lever. according to this moment of effort is equal to moment of moment of load. As in this case effort arm is equal to load arm. so mechanical advantage is equal to one. but we know we can never finish friction between rope used and pulley so mechanical advantage is less than one
Advantages and disadvantages of using an inclined plane or ramp with lifting of heavy objects?
The advantage is that force is lessened over a longer distance. The longer the inclined plane, the higher the mechanical advantage.
15 What is the purpose of using a tool with a mechanical advantage less than one?
The purpose is to apply the force over a smaller distance.
How do you calculate the mechanical advantage of any machine?
distance over which the force is applied ________________________________ Distance over which the load was moved or MA= Effort Force _________ Load force OR MA= Length of Load arm ____________________X Weight/mass Length of Effort arm
What reduces the mechanical advantage of a machine?
The mechanical advantage of something is related to the power input (fuel) and the power output (work) that the machine is given/gives out (respectively) I'm not entirely sure what means what (i.e. a mechanical advantage of over 1 or 3 or whatever = efficient, and such) Hope I helped. If you need to, I think the last place I saw a lesson on this was in a Holt physical science book, if you wanted to search for that lesson online or something.
