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Mechanical Advantage Worksheet

  1. A wheelbarrow has a mechanical advantage of 2.2. An input force of 202N is applied to the handles. What is the output force?
  1. List your givens

Mechanical advantage =

Input force =

Output force =

  1. Plug in to equation

Output Force = (Mechanical Advantage)(Input Force)

  1. In order to remove a nail with a claw hammer the output distance is 2.0cm and the mechanical advantage is 5.5. What is the input distance?
  2. List your givens

Mechanical advantage =

Input distance =

Output distance =

  1. Plug in to equation

Input Distance = (Mechanical Advantage)(Output Distance)

  1. Power steering has a mechanical advantage of about 75. If the input force on the steering wheel is 49N, what is the output force?
  2. List your givens

Mechanical advantage =

Input force =

Output force =

  1. Plug in to equation

Output Force = (Mechanical Advantage)(Input Force)

  1. An axe used to split wood is driven into a piece of wood with an input distance of 3.0cm. If the mechanical advantage of the axe is 0.85, how far is the output distance?
  2. List your givens

Mechanical advantage =

Input distance =

Output distance =

  1. Plug in to equation

Output Distance = Input Distance/Mechanical Advantage

  1. The mechanical advantage of an automobile’s axle is 8.93 x 10-2. If the wheel’s output force is 2.22 x 103N, what is the input force that turns the axle?
  2. List your givens

Mechanical advantage =

Input force =

Output force =

  1. Plug in to equation

Input Force = Output Force/Mechanical Advantage

  1. A screw has a mechanical advantage of 12.5. If the screw is turned several times so that the input distance is 1.57m, what is the output distance?
  2. List your givens

Mechanical advantage =

Input distance =

Output distance =

  1. Plug in to equation

Output Distance = Input Distance/Mechanical Advantage

  1. A ramp is 4.6m (input distance) long. It is used to lift a crate 1.4m (output distance). What is the mechanical advantage?
  2. List your givens

Mechanical advantage =

Input distance =

Output distance =

  1. Plug in to the equation

Mechanical Advantage = Input Distance/Output Distance

  1. A block and tackle is used to lift a truck engine, which has a weight of nearly 7406N (output force). The input force required to lift this using the block and tackle is 308.6N. What is the mechanical advantage?
  2. List your givens

Mechanical advantage =

Input force =

Output force =

  1. Plug in to equation

Mechanical Advantage = Output Force/Input Force

  1. Suppose you are trying to push a door open that is 85cm (input distance) wide. If you push on the door 15 cm (output distance) away from the hinges, what is the mechanical advantage?
  2. List your givens

Mechanical advantage =

Input distance =

Output distance =

  1. Plug in to equation

Mechanical Advantage = Input Distance/Output Distance

  1. A ramp used to raise stones of the Pyramids of Egypt had a mechanical advantage of 3.86. If an input force of 6350N was provided by the laborers, what is the output force?
  2. List the givens

Mechanical advantage =

Input force =

Output force =

  1. Plug in to equation

Output Force = (Mechanical Advantage)(Input Force)

  1. A wedge with a mechanical advantage of 0.78 is used to raise a house corner from its foundation. If the output force is 7500N, what is the input force?
  2. List the givens

Mechanical advantage =

Input force =

Output force =

  1. Plug in to equation

Input Force = Output Force/Mechanical Advantage

  1. The input distance is 0.64m on a pennyfarthing bicycle. If the mechanical advantage is 0.16, what is the output distance?
  2. List the givens

Mechanical advantage =

Input force =

Output force =

  1. Plug in to equation

Output Distance = Input Distance/Mechanical Advantage