The torque applied by the second force at the knob of the door will be twice.
Torque is the momentum of force. It is also known as the tendency of the force to rotate a body. It is the product of the force and the distance between the force and the point about which the torque will be calculated.
T₁ = F x d/2
T₂ = Fx d
T₁ / T₂= F x d / F x d x 2
T₂ = 2T₁
Hence, the torque applied by the second force at the knob of the door will be twice.
Learn more about Torque here:
https://brainly.com/question/17512177
#SPJ4