Question

In the picture below, the boy is holding the girl up on a see-saw. What does the girl need to do to make the see-saw balance?Select one:a. Move farther back on her end of the see-saw.b. Move closer to the fulcrum.c. Ask the boy to move back.d. There is no way the see-saw can be balanced.

Answer 1

Step-by-step explanation

Step 1

Diagram:

in this case, the torque made by the boy is greater, so

`200*d_1>160*d_2`

therefore, the make the see-same balanced the girl need have a greater torque

`T=force\text{ *distance}`

in this case, the force is the weigth of the girl, as she can not change her weigth to have a greater torque,she needs a greater length to the fulcrum, hence

Move farther back on her end of the see-saw.