If you have to apply 30 n of force on a crowbar to lift an object that weighs 330 n, what is the mechanical advantage of the crowbar? 1. 9900 2. 11 3. 0.36 4. 110 5. 0.09 6. 300

The answer is: 2. 11 Crowbar is a Class A lever Therefore the mechanical advantage of the crowbar can be given by either: MA = Output distance/Input distance OR MA = Output force/Input force Since, the question gives only the force, we can use the second formula. MA = Output force/ Input Force = 330 N / 30 N = 11

Ithink the answer would be knew