Question

A lighter child can move a heavier child on a seesaw if :

• A. He eats more to gain energy
• B. He moves closer towards the fulcrum
• C. Moves away from the fulcrum
• D. He uses less effort

Answer 1

The correct option is C Moves away from the fulcrum

To move a heavier child the lighter child should sit more far than the heavier child from equalizing torque we know

$f\cdot r=k$

or $F\alpha \frac{1}{r}$

Ans- option-C