two children simultaneously climb on a teeter totter that is parallel to the gro

Question

two children simultaneously climb on a teeter totter that is parallel to the ground, james weighs 40 kg and sit at 1.5 meter from the fulcrum. john, who weighs 35 kg, takes a seat 1.8 meters from the fulcrum.

A..will the lever move?

so i said : 40*1.5 = 35*1.8

which is 60 = 63 , so yes it does move

and

B. if so which child will move upward and why? james whos 60 kg since its lighter in weight.

C. where would john have to sit in order for the teeter totter to balance? ??

if someone can help me with part C and also let me know if the first and second parts are okay

Explanation / Answer

for balancing torque about fulcrum

let jhons distance be x

40*1.5 = 35* x

x=1.7143 meters from the fulcrum

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