If the system has a mechanical advantage of 5 and the load of 350N. What effort is needed to lift the weight? Provide your answer in newtons​

Effort = 70 N

Explanation:

A machine is a device that can be used to overcome a load by the application of a minimal effort. For a practical machine, mechanical advantage (MA) is the ratio of the load (L) overcome to the effort (E) applied.

i.e MA =

In the given question, MA = 5 and the load = 350 N. So that;

5 =

E =

  = 70

The effort applied to the machine is 70 N.

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the answer is d underlined.