An adult's arm length.
The length of one arm is about 40% of your height
Mechanical advantage= effort arm length/ load arm length For Example Effort arm=120 cm Load arm length= 40 cm MA-120/40 = 3
In square each arm's length is equal. If we indicate each arm's length by 'a'. Then area of square =(a)2
Usually not.
A ruler
The metric unit of measurement that would best be used to measure the length of your arm is centimeters. This unit provides a more precise measurement compared to using meters or kilometers for such a small length.
You can measure the length of your arm in centimeters or millimeters. To convert this measurement to meters, you would divide by 1000 for millimeters or 100 for centimeters. The other units like decimeters, kilometers, and decameters are not typically used for measuring the length of a human arm.
A foot is a unit of distance about the length from your wrist to your elbow. Anything you can measure can be expressed in feet. If it is smaller than your arm or longer than a portion of a mile then I would probably choose a different measurement.
CUBIT
centimetre.
An ell is an obsolete unit of measurement - the length of an arm from elbow to tip of the middle finger.
umm well maby you get a ruler and put it up to your arm, then u rite down what the number is
The mechanical advantage of a lever is calculated by dividing the length of the input arm by the length of the output arm. In this case, the mechanical advantage would be 3/2, which simplifies to 1.5. This means that for every 1 unit of effort applied to the input arm, the lever can lift 1.5 units on the output arm.
An adult's arm length.
The earliest known length measurement unit is the cubit: the length from the point of a bent elbow to the tip of the longest finger. Because this length varies from person to person the King's arm was used as the standard cubit and "cubit rods" were cut to that length and used by everyone else to measure lengths and distances. Other units were determined similarly: the standard foot being the length of the king's foot, the inch is the length of 3 barley corns placed end to end, etc.
The mechanical advantage of a lever is calculated by dividing the length of the effort arm by the length of the resistance arm. In this case, the MA would be 5 (100cm/20cm).