The force required to maintain a body at constant velocity in free space is equal to
1) the mass of the body.
2) zero.
3) the weight of the body.
4) the force required to stop it.
5) none of these.
This is in accordance with the law of
6) inertia.
7) action/reaction.
8) gravitation.
9) energy conservation.
Question 2
An object is dropped from a position of rest. At the end of the first second of free fall it will have traveled about
1) 0 m
2) 5 m
3) 10 m
and its velocity will be about
4) 0 m/s.
5) 5 m/s.
6) 10 m/s.
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