Can someone answer this for meee? ? w

We know that either team is winning which means that the cumulative forces (sum of each girl force) on both teams are equal.

This means,

being x the force of the fourth girl on the east team.

Solving to x, you get

The fourth girl on the east is pulling with a force of 220N.

the only real purpose of sputnik 1 was to beat the us into space. we were getting close to launching a useful satellite, explorer 1 - which launched on january 31, 1958. the ussr had to beat that, so they launched sputnik 1 on october 4, 19