A satellite inputer space is moving at a constant velocity of 21.1 m/s in the +y direction when one of its onboard thruster turns on, causing an acceleration of 0.310 m/s? in the + direction. The acceleration lasts for 47.0 s, at which point the thruster turns off. (a) What is the magnitude of the satellite's velocity when the thruster turns off? m/s (b) What is the direction of the satellite's velocity when the thruster turns off? Give your answer as an angle measured counterclockwise from the +x-axis