QUESTION 13
The force(s) acting on an object falling at terminal velocity is/are:
- gravity only
- air resistance only
- friction only
- air resistance and friction
- air resistance and gravity
QUESTION 14
A ball is thrown upwards. While it is moving upwards, the force of air resistance is:
- upward
- downward
- zero
- equal to weight
QUESTION 15
A 40 N box is at rest on a table. The mass of the box is:
- 0 Kg
- 4 Kg
- 40 Kg
- 400 Kg