Three dogs are pulling on a peg. Two are pulling in the same direction with forces of 85 N and 65 N, respectively. The third dog is pulling in the opposite direction with a force of 70 N, then the peg needs 80 N force to keep from being pulled out
What is reaction force?
It is a type of force that acts in the opposite direction of the applied force, for example when one applies active force towards the stationery wall, the wall exerts a reactive force in the opposite direction.
As given in the problem three dogs are pulling on a peg. Two are pulling in the same direction with forces of 85 N and 65 N, respectively. The third dog is pulling in the opposite direction with a force of 70 N
By using the equilibrium of forces the forces on both sides of the peg
85 + 65 = 70 + Fp
where Fp is the resistive force of the peg
Fp = 80 N
Thus, the peg needs 80 N force to keep from being pulled out
Learn more about reaction forces
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