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lubasha [3.4K]
3 years ago
12

In a pulley system, a 5-newton weight is to be lifted 2 meters. The rope is pulled 10 meters. The input force is two newtons.

Physics
2 answers:
loris [4]3 years ago
4 0
The answers to the problem are as follows:

MA= 5 

IMA= input distance/ output distance, 5 

<span>AMA= output force/ input force, 5/2
</span>

I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!
vovikov84 [41]3 years ago
3 0

Explanation:

It is given that,

Input force, F_i=2\ N

Output force, F_o=5\ N

Input distance, d_i=10\ N

Output distance, d_o=2\ N

1. IMA of a machine is the ratio of input distance to the output distance. It is given by :

IMA=\dfrac{d_i}{d_o}=\dfrac{10}{2}=5

2. AMA is the actual mechanical advantage of the machine. It is the ratio of output force to the input force. It is given by :

AMA=\dfrac{F_o}{F_i}=\dfrac{5}{2}

3. The efficiency of the machine is the percentage of output work to the input work.

\eta=\dfrac{W_o}{W_i}\times 100

\eta=\dfrac{F_o\times d_o}{F_i\times d_i}\times 100

\eta=\dfrac{5\times 2}{2\times 10}\times 100

\eta=50\%

Hence, this is the required solution.

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