Question

The picture below is a door as viewed from directly above. The black circle represents the hinges. Each arrow represents a force that is being applied to the door. Each force has the same magnitude. F Which forces shown have NO LEVER? Choose all that apply. OA D DH X Lever & no torque The picture below is a door as viewed from directly above. The black circle represents the hinges. Each arrow represents a force that is being applied to the door. Each force has the same magnitude. F T G H Which forces shown have a LEVER but create NO TORQUE? Choose all that apply. A OD OF OG X

Please Explain The Answers, thank you.

Answer 1

Sol" - (1) Lever arm'- lever arm is the perpen di- cular distamce between line of action of force and point of rotation. In figure it is clear that F,G, E, and B have no lever asm. Н G 1 E Point of D с Totation ore=N D, F, C, G E. creating torque (2)= for XF) = So the From figure it is clear that the force have lever and also create a torque about hinges. But force A, B, SH no torque about point o. because fr1= 0) and these forces forces have also lever om but unable to apply torque. Note: za in - Chipº