Question

from physics.........

Answer 1

moment of force =force x distance
therefore force =moment of force /distance
=20Nm/0.5m
Which is equal to 40N force

Answer 2

We know
moment of force that is torque...
Torque = Force x perpendicular axis distance...
so here the torque is given...

there fore..
20 = f x 0.5
such that f = 20/0.5
f = 40 N......