Q10

A particle is moving vertically in a resistive medium under the influence of gravity. The resistive force is proportional to the velocity of the particle.

The initial speed of the particle is NOT zero.

Which of the following statements about the motion of the particle is always true?

A. If the particle is initially moving downwards, then its speed will increase.
B. If the particle is initially moving downwards, then its speed will decrease.
C. If the particle is initially moving upwards, then its speed will eventually approach a terminal speed.
D. If the particle is initially moving upwards, then its speed will not eventually approach a terminal speed.