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dmitriy555 [2]
2 years ago
14

Which statement describes how a machine can help make work easier? It can put out more force than the input force by decreasing

the distance over which force is applied. It can increase the amount of work performed if the output force is in the same direction as the input force. It can apply a greater output force over a greater distance compared to the input force and distance. It can increase the distance over which output force acts by applying less output force than input force.
Physics
2 answers:
Basile [38]2 years ago
7 0

Answer:

C. It can apply a greater output force over a greater distance compared to the input force and distance.

Explanation:

Basile [38]2 years ago
5 0

Answer:

It can apply a greater output force over a greater distance compared to the input force and distance.

Explanation:

A machine helps to multiply force input and makes it easier to do work. Simple and complex machines are need to make work easier.

  • Most machines are designed to increase the input force by a system of mechanics.
  • Machines allow force to be applied over great distances and this allows for the input work done to be duly compensated for.
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A bag of cement weighing 325 N hangs in equilibrium from three wires. Two of the wires make angles of theta1=60.0 degrees and th
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The sketch of the system is: two strings, 1 and 2, are attached to the ceiling and to a third string, 3.The third string holds the bag of cement. 

The free body diagram of the weight with the string 3, drives to the tension T3 = weihgt => T3 = 325 N

The other free body diagram is around the joint of the three strings.

In this case, you can do the horizontal forces equilibrium equation as:

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Then you have two equations with two unknown variables, T1 and T2

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When you solve it you get, T1 = 252.8 N and T2 = 165 N

Answer: T1 = 252.8 N, T2 = 165N, and T3 = 325N



 
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