A certain string breaks when a force of 225 N is exerted on it. If two people pull on opposite ends of the string , each with a force of 175 N , will the string break?
What actions reaction pairs of forces would be involved?
To determine whether the string will break when two people pull on opposite ends with a force of 175 N each, we need to consider the total force exerted on the string.
In this scenario, the force exerted by each person pulling on the string is 175 N. Since there are two people pulling, the total force exerted on the string is the sum of their individual forces, which is 175 N + 175 N = 350 N.
Now, compare the total force of 350 N with the force at which the string breaks, which is given as 225 N. Since the total force of 350 N is greater than the force at which the string breaks (225 N), we can conclude that the string will indeed break when two people pull on opposite ends with a force of 175 N each.
Regarding the actions reaction pairs of forces involved, when the two people pull on the string, there are two pairs of action-reaction forces at play.
The first pair involves the person on the left pulling the string and the string exerting an equal and opposite force on that person. The second pair involves the person on the right pulling the string and the string exerting an equal and opposite force on that person. These pairs of forces follow Newton's third law of motion which states that for every action, there is an equal and opposite reaction.