Question

9 write the formula used to calculate mechanical advantage (ma)
10 load force means the force _____________________
11 effort force means the force _____________________
12 it takes 100 n to pull an object up an inclined plane. the gravitational force on the object is 600 n.
what is the load force in this case? ______________ n
what is the effort force in this case? ______________ n
calculate the mechanical advantage (ma)
answer ______________
13 a person has a mass of 80 kg. it takes a force of 150 n to pull that person up using a system of pulleys.
a. calculate the gravitational force on the person ______________ n
b. calculate the mechanical advantage (ma) of the pulley system. show all your work.
answer ______________
14 the mechanical advantage of a lever is 6. how much force needs to be exerted on the lever to lift an object with a gravitational force of 320 n? show all your work.
answer ______________
15 it takes 130 n to push a 52 kg object up an inclined plane. calculate the mechanical advantage of the inclined plane. show all your work.

Explanation:

Step1: Define MA formula

$\text{Mechanical Advantage (MA)} = \frac{\text{Load Force (}F_L\text{)}}{\text{Effort Force (}F_E\text{)}}$

Step2: Define Load/Effort

Load = force to overcome (gravity); Effort = applied force
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Question 9

Step1: State MA formula

$\text{MA} = \frac{F_L}{F_E}$

Load force is the resistance force that must be overcome to move an object, typically the gravitational/weight force acting against the movement.

Effort force is the input force applied by a person or machine to overcome the load force.

Answer:

$\text{MA} = \frac{\text{Load Force}}{\text{Effort Force}}$

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Question 10