Overview
a) A 745 kg space probe is traveling 12 m/s East when it encounters some plasma that applies a force of -10 N (against its motion) over 4 s. The navigator fires a thruster to apply 56 N of force to the North over 4 s. What is the vector describing its final velocity? [ __, __ ] m/s
b) Over 8.1 s, a solid ball spinning on the floor constantly slows from 25.1327 rad/s to 8.3776 rad/s. What is the torque the 654 g, 72 cm (radius) ball is experiencing due to friction with the floor? Assume it it is initially spinning in the +z direction. c) What is the impulse the ball experiences?