7. if a lever has a mechanical advantage of 3 and a wheel and axle has a mechanical advantage of 2, what…
7. if a lever has a mechanical advantage of 3 and a wheel and axle has a mechanical advantage of 2, what would be the mechanical advantage of a compound machine that combines these two?\nshow your work: \nanswer:
Answer
Explanation:
Step1: Recall the rule for compound machines
The mechanical advantage of a compound machine is the product of the mechanical advantages of its component simple - machines.
Step2: Calculate the mechanical advantage
Let $MA_1 = 3$ (mechanical advantage of the lever) and $MA_2=2$ (mechanical advantage of the wheel - and - axle). Then the mechanical advantage of the compound machine $MA = MA_1\times MA_2$. $MA=3\times2 = 6$
Answer:
6