Question

No work is done by a force of an object if. (1) The object moves in such a way that the point of application of the force remains fixed. (2) The force is always perpendicular to its velocity. (3) The force is always perpendicular to its acceleration. (4) All of these.​

Answer 1

Answer:

Newton law

Explanation:

1. the law of inertia

2. momentum

3. action reaction