Physics

Guest

17 October, 10:24

1. In which direction can a force be exerted on an object?

A. Any direction

B. Up, down, left, right

C. Depends on the acceleration of the object

2. Based on Newton's first law of motion, which of the following is true?

A. objects at rest stay at rest until acted upon by a force

B. no forces are necessary to accelerate an object

C. only balanced forces can accelerate an object