Question

In each of the diagrams below, O refers to the pivot point and P is the point of application of the force. In all cases the magnitude of the force is the same and the distance between O and P are equal 0 0 0 0 0 (a) In which one af the diagrams does the line of action of the force pass through the pivot point? (Select all that apply) a diagram (i) a diagram (ii) a diagram (iii) a diagram (iv) a diagram (v) (b) In which of the cases is the lever arm and therefore the torque zero? (Select all that apply.) O diagram (i) O diagram (ii) diagram (ii) diagram (iv) O diagram (v) (c) In which of the cases is the lever arm and therefore the torque the maximum? (Select all that apply.) diagram (i) diagram (ii) O diagram (ii) diagram (iv) diagram (v)

Answer 1

(a) In diagram ii and iv it will pass through the pivot point.

(b) When line of action of force pass through the pivot point then torque due to such forces is zero.
hence for diagram ii and iv there will be no torque.

(c) We know that the torque is given by
torque = Force*perpendicular distanc
therefore in diagram "iii" perpendicular distance is maximum therefore
for diagram iii it will be maximum.

"In diagram ii and iv it will pass through the pivot point. When line of action of force pass through the pivot point then torque due to such forces is zero. hence for diagram ii and iv there will be no torque. We know that the torque is given by torque = Force*perpendicular distance therefore in diagram ""iii"" perpendicular distance is maximum therefore for diagram iii it will be maximum "

(0 0) (lit) (iv) gii) (iv)