An Atwood's machine has two objects with masses m1= 200g and m2=300g , hung from an ideal pulley. What is the acceleration of the masses? Consider g=10 m/ s^ 2

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