A boy pull a nail from the wall with a string tied to the nail.the string os inclined at an angle of 60° to the wall if the tension in the string is 4N, what is the effective when in pulling the nail
To find the effective force in pulling the nail, we need to resolve the tension force into its components.
The tension force in the string can be split into two components: the vertical component and the horizontal component.
The vertical component of the tension force can be found using the equation:
Vertical component = Tension force x sin(angle)
Vertical component = 4N x sin(60°) = 4N x 0.866 ≈ 3.464N
The horizontal component of the tension force can be found using the equation:
Horizontal component = Tension force x cos(angle)
Horizontal component = 4N x cos(60°) = 4N x 0.5 = 2N
To pull the nail out of the wall, the effective force required is equal to the horizontal component of the tension force, which is 2N.