An object of known mass m with speed v0 travels toward a wall. the object collides with it and bounces away from the wall in the opposite direction in which the object was initially traveling. the wall exerts an average force f0 on the object during the collision. a student must use the equation δp⃗ =f⃗ δt to determine the change in momentum of the object from immediately before the collision to immediately after the collision. which side of the equation could the student use to determine the change of the object's momentum?

Wo small variable-thrust jets are actuated to keep the spacecraft angular velocity about the z-axis constant at ? 0 = 1.16 rad/s as the two telescoping booms are extended from r1 = 1.18 m to r2 = 4.69 m at a constant rate over a period of 124 seconds. the small 19-kg experiment modules at the ends of the booms may be treated as particles, and the mass of the rigid booms is negligible. determine the necessary thrust t for each jet as a function of time where t = 0 is the time when the telescoping action is begun. after you have the general expression for t, answer the questions. show work.