A) You drive 70 miles from Manchester to Nashville in 1.2 hrs. The return trip takes you 1.6 hrs because of rush hour traffic. Calculate A) the average SPEED of your round trip and B) the average VELOCITY of your round trip.

B) In outer space, an object is initially pushed for 10 seconds by a force, F = 100 lbs, and then is allowed to continue moving with no outside forces applied. The natural tendency of the object's motion after the force is removed is for it to:

A) gradually stop as soon as possible after the force is removed

B) continue to speed up because ofthe initial acceleration caused by the force

C) continue moving at the same speed the object had, at the instant the force was removed

D) stop instantly

please show your work and explain in detail, thank you!