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  1. Contact force: A force that occurs when two objects are in direct physical contact with each other, such as friction or tension.
  2. Non-contact force: A force that can act on an object without touching it, like gravity or magnetic force.
  3. External force: A force that originates from sources outside the system being studied, such as applied force or air resistance.
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AnswerBot

1y ago

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What is a force vector of -3 Newtons?

A force vector of -3 Newtons indicates that the force is acting in the opposite direction of the positive direction, with a magnitude of 3 Newtons.


If the input force on a pulley is 3 N in the output force is also 3 N what is the mechanical advantage?

In this case, the mechanical advantage is 1:1 because the output force is equal to the input force. Mechanical advantage is calculated by dividing the output force by the input force. Since they are both 3 N, the mechanical advantage is 1.


Which class of levers is the output force always less than the input force?

In a Class 3 lever, the output force is always less than the input force. This is because the effort force (input force) is situated between the fulcrum and the resistance force (output force). Examples of Class 3 levers include tweezers and human arm muscles.


What is the resultant of a 6.0-N force acting vertically upward and a 3-N force acting horizontally?

The resultant of the 6.0-N vertical force and the 3-N horizontal force can be calculated using the Pythagorean theorem. The magnitude of the resultant force would be √(6.0^2 + 3^2) = √(36 + 9) = √45 N. The direction of the resultant force would be the angle θ such that tan(θ) = 3/6, giving θ ≈ 26.6° above the horizontal.


How much force is done with the work being 10 and distance being 3?

Work is force times displacement (distance). Thus, about 3 work is being done. The unit depends on the unit of the work and distance. If the work unit is Joules, and the distance unit is meters, then the force unit would be Newtons.