Answer:
1) 250 N
2) 3 m
3) 200 N
Explanation:
You need to balance the torque created in either sides of the fulcrum to get the required answers.
L.H.S torque = R.H.S torque
Torque = Force × perpendicular distance to axis of rotation
1) 4×____ = 2×500
answer = 250 N
2) 4×300 = ____×400
answer = 3 m
3) 1×600 = 3×____
answer = 200 N
