Answer:
The output is 225N
Explanation:
The formula for calculating the efficiency of the pulley can be given as
[tex]E = \frac{output}{input} \times 100\%[/tex]
The input is 300N and the efficiency of the pulley is 75%.
Making output the subject.
[tex]output = \frac{E}{100\%} \times input[/tex]
Substituting the value.
[tex]output = \frac{75}{100} \times 300 = 225N[/tex]