Answer: 10 is the actual mechanical advantage of the crowbar.
Explanation:
Force exerted on the crowbar,Input force[tex]F_I[/tex] = = 40 N
Force exerted by the crowbar,Output force [tex]F_O[/tex] = 400 N
Actual Mechanical Advantage :
[tex]\frac{F_O}{F_I}=\frac{400 N}{40 N}=10[/tex]
10 is the actual mechanical advantage of the crowbar.
The mechanical advantage of a crowbar will be [tex]\rm MA=10[/tex]
The mechanical advantage is defined as the amplification of the input force by using some tools or machines.
It is given as the ratio of the output force to the input force. the formula is given as
[tex]\rm MA= \dfrac{F_o}{F_i}[/tex]
Now it is given in the question that
Input force = 40 N
Output force=400 N
The mechanical advantage will be
[tex]\rm MA=\dfrac{400}{40}=10[/tex]
Hence the mechanical advantage will be MA=10
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