Please help me do that.

Answer:
a) 22.2 N
Explanation:
To find load effort. Identify load, efficiency and velocity ratio (VR)
Here given:
Effort :
[tex]\rightarrow \sf \dfrac{MA}{VR} = \dfrac{Load \ \div \ efficiency }{VR} = \dfrac{100 \div 75 \% }{6} = 22.22 \ N[/tex]