A=(vf-vi)/t

d= Vi x t + at2/2

d=(vf2-vi2)/2a

d=((Vi+vf)/2) t

I wasn't sure what you really need so i listed all of them if they are not what you are looking for please tell me for me to correct it.Hope this help ;)

Explanation:

VF VI t mean

a= Vf - Vi /t. acceleration = final velocity - initial velocity divided by time.

d= Vi x t + at2/2 The final velocity is zero

the last two i couldn't solve but i will try my best to finish those.

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