posted by Isabella .
A spacecraft is traveling with a velocity of v0x = 6370 m/s along the +x direction. Two engines are turned on for a time of 843 s. One engine gives the spacecraft an acceleration in the +x direction of ax = 1.20 m/s2, while the other gives it an acceleration in the +y direction of ay = 7.80 m/s2. At the end of the firing, find the following.
a). vy and vx
Acceleration (along any axis) times the time interval that it acts equals velocity change (along that axis)
Vx increases by an amount 1.2 m/s^2*843 s. That adds 1012 m/s to the vx component.
The Vy component starts from zero and ends up at 7.8 m/s^2*843 s = 6575 m/s