How do you know if the mechanical advantage is 1 (that’s more than one, one, and less than one, right?)
How do you find it without finding the actual mechanical advantage for the wedge, pulley, lever, wheel and axle, and inclined plane?
For a science project, we had to make a can crusher. Part of the lab is to find the mechanical advantage.. How do I do this? I know Mechanical Advantage= Load force devided by effort force..?
I am a little confused. Why is possible to have a mechanical advantage greater than 1 but you cannot have a mechanical efficiency greater than 100%
An object with a mass of 2 tonnes is lifted with a simple screw jack which requires an effort of 250N. If, in lifting the object, a distance of 150MM is moved vertically, and the operator turns the jack handle through a distance of 20,000MM calculate:
a) The mechanical advantage.
b) The velocity ratio
c) The efficiency
Thanks in advance for any help.
A. A ramp that is very long has less mechanical advantage than a shorter ramp of the same height.
B. A short ramp the same height of a longer ramp takes less effort to go up, giving it a greater mechanical advantage.
C. Two ramps of the same lengths, but with different heights have identical mechanical advantages.
D. A longer ramp will have a higher mechanical advantage than a shorter ramp of the same height.
The output force of a lever with an ideal mechanical advantage of 3 is used as the input force of a pulley system with an ideal mechanical advantage of 2.