Answer:
Effort = 120 Newton
Explanation:
Given the following data;
Mechanical advantage = 6
Load = 780 N
To find the effort required to lift the weight;
Mechanical advantage can be defined as the ratio of the load (weight) lifted by a simple machine to the effort (force) applied.
Mathematically, the mechanical advantage is given by the formula;
[tex] M.A = \frac {Load}{Effort} [/tex]
Making effort the subject of formula;
[tex] Effort = \frac {Load}{M.A} [/tex]
Substituting into the formula, we have;
[tex] Effort = \frac {720}{6} [/tex]
Effort = 120 Newton.
