Question

A heavy and a light person stand on opposite sides of a seesaw so that the seesaw is horizontal and in balance. The seesaw consists of a plank which can rotate freely around a pivot shaft. Both persons move at the same time 25 cm towards the pivot shaft. What happens?

(a) The seesaw will remain in balance;

(b) The end of the heavier person will go down;

(c) The end of the lighter person will go down;

(d) It is not possible to determine which of the ends goes down without knowledge about the relative mass of the plank.

Motivate your answer!

Answer 1

Sale Heauire person, mass=M initial Distance L 8 cal ya lighter person, mass= m initial distance = l initially: ML=me Now both move 25m to pivot, point Mill-287zanet Now Terque Heary Person MCL-25) right person, incl-25) ml-25m + ML-25m (mb25m). (ML - 25M] End of lighter person goes g down e - so option @