Moments

A seesaw is unbalanced with two people of different masses sitting equal distances from the center. How can we make the seesaw balanced ?

The figure shows a man lifting a heavy rock using a steel bar. He pushes downwards on the end of the bar with a force F. Which pivot positions allows the force F to be as small as possible?

A simple machine which consists of a beam resting on a pivot that help us carry heavy objects is called ________

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