wo siblings are playing in a see-saw 4 meters long. The see-saw turns about its center of gravity which is located at the center of the see-saw. The 20kg younger sibling sat 20 centimeters from one end of the see-saw. The other sibling sat 50 centimeters from the other end to keep the see-saw horizontal. How heavy is the other sibling in kilograms? Considering the previous problem. The two siblings sat at the same distances from the end but now they are at the same side of the see-saw. Superman comes to play and exerts a force at the other extreme end to keep the see-saw horizontal? How strong is this force exerted by Superman in Newtons?

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Torque

Torque is the rotational equivalent of linear force in physics and mechanics. Based on the course of study, it is also known as the moment of force, rotational force, or turning effect.