Question

An object is moving with constant velocity v.

Which situation is impossible in such a
circumstance?
1. Three forces act on the object.
2. Two forces act on the object
3. No forces act on the object
4. one force acts on the object
5. Four forces act on the object

Answer 1

One force acts on the object

A situation is impossible in such a circumstance - one force acts on the object. Because when the object is moving at constant velocity it means net force is zero. If one force acts on the object, net force is always not a zero. All the other combinations (no forces, two forces, three forces … )could give a resultant force equal zero