Steve and Erin are on the see-saw. Steve has a mass of 60 kg and Erin has a mass of only 30 kg. If Steve is sitting 0.9 meters from the pivot point, how far away from the pivot point must Erin sit in order for them to be balanced?

the answer is f1 and d2 because if you put equal force on those two points the beam would balance trust me on this

e/c, where e is its total energy

the tires are rotating at 0.434 rpmlinear speed=45 m/sdiameter=0.550 mradius=0.275 mnow v= rωω= v/rω=45/0.275ω=163.6 rad/sω=163.6 rad/s (1rev/2π rad) (60s/1m)ω=1563 rpm