A ball is dropped from the top of a tower. Due to air resistance,it reaches terminal velocity. Which of the following statement(s) about its motion is/are correct? i. The acceleration of the ball is zero. ii. The net force on the ball is zero. iii. The velocity of the ball increases.
- i only
-
i and ii only
- ii and iii only
- i, ii and iii
The correct answer is: B
Explanation
Terminal velocity refers to the constant speed that an object reaches as it falls through a liquid or gas.
Since the net force on the object is zero, the object has zero acceleration.