Imagine that you again push on a door, but
now push 1 and push 2 are applied at the same
place, near the door knob. Again, both pushes are
equally hard and equally long. The only difference
is that push 1 is perpendicular to the door, while
push 2 is at an angle, as drawn here. Although the
exact angle doesn’t matter, make it reasonably
small, under 45°.
Which push will produce a bigger torque? Intuitively, why is that?

Question

Imagine that you again push on a door, but 
now push 1 and push 2 are applied at the same 
place, near the door knob. Again, both pushes are 
equally hard and equally long. The only difference 
is that push 1 is perpendicular to the door, while 
push 2 is at an angle, as drawn here. Although the 
exact angle doesn’t matter, make it reasonably 
small, under 45°. 
Which push will produce a bigger torque? Intuitively, why is that?

anonymous · Answer

push 1

mony01 · Answer

why? can you plz explain

anonymous · Answer

mathematical explanation or theoretical?

mony01 · Answer

i dont understand @mayankdevnani

mony01 · Answer

both @physo

anonymous · Answer

mathematically, torque=distance between COM and point of application of force * perpendicular component of force.

mony01 · Answer

whats COM?

anonymous · Answer

this means that a perpendicular force of equal magnitude should produce a greater torque. this is because, the tangential component of force can contribute only to linear motion

anonymous · Answer

whereas the perpendicular force will produce a moment (also known as torque). Think of a rotating disk with a fan attached to it. if the fan faced towards the centre of the disk, it wouldn't rotate but if the fan faced tangentially, it would start rotating.

anonymous · Answer

COM is the centre of mass. the point where all the weight of an obj can be thought to act at