Small rockets are used to make small adjust-
ments in the speed of satellites. One such
rocket has a thrust of 42 N.
If it is fired to change the velocity of a(n)
83000 kg space craft by 71 cm/s, how long
should it be fired?
Answer in units of s

Question

Small rockets are used to make small adjust-
ments in the speed of satellites. One such
rocket has a thrust of 42 N.
If it is fired to change the velocity of a(n)
83000 kg space craft by 71 cm/s, how long
should it be fired?
Answer in units of s

anonymous · Answer

Treat the thrust as a force. F=ma, then use the acceleration as you would in a normal kinematics problem.  Be mindful of units!