The speed of moving ball increase further if force is applied ina)Oppo...
Explanation:
When a force is applied to a moving ball, it can affect its speed and direction of motion. In this case, the question asks about the effect of the force on the ball's speed. Let's analyze the different options:
Option A: Opposite to direction of motion
If a force is applied opposite to the direction of motion, it acts as a resistance or a drag force. This force opposes the ball's motion, causing it to slow down. Therefore, the speed of the ball will decrease rather than increase.
Option B: Parallel to direction of motion
If a force is applied parallel to the direction of motion, it does not directly affect the speed of the ball. This force can change the direction of motion or cause the ball to veer off course, but it does not increase the speed.
Option C: Direction of motion
When a force is applied in the direction of motion, it acts as a driving force. This force adds to the ball's existing motion, increasing its speed. For example, if you push a ball in the direction it is already rolling, it will accelerate and move faster.
Option D: Perpendicular to direction of motion
If a force is applied perpendicular to the direction of motion, it can change the ball's path but does not directly affect its speed. The ball may start moving in a different direction due to this force, but its speed will not increase.
Therefore, the correct answer is option C: When a force is applied in the direction of motion, the speed of a moving ball increases.