Answer:
Arrow C
Step-by-step explanation:
As we can see that when we apply at arrow A the force is downward while the force acting by the board is upward which cancels the effect so no work will be done
Now about the Arrow B when we apply a force on it then a force will act and body will move so work will be done
we knot that
Work done = Force . Displacement
Work = Fd cos Ф
Here in B it will not be maximum because there will be an angle acting on it which is greater then 0 so it will not maximum
while in case of arrow C the angle between force and displacement is 0
as cos(0)=1
so work done = Fd which is the maximum value
