A student claims that hitting a tennis ball across the court is an example of balanced forces. Is he correct?(1 point)
No, because equal forces act on the ball from all sides.
Yes, because the force in the direction of the ball’s motion is greater.
No, because the force in the direction of the ball’s motion is greater.
Yes, because equal forces act on the ball from all sides.
No, because the force in the direction of the ball’s motion is greater.
No, because the force in the direction of the ball's motion is greater.
To determine whether the student is correct in claiming that hitting a tennis ball across the court is an example of balanced forces, we need to understand what balanced forces are.
Balanced forces occur when two or more forces acting on an object are equal in magnitude and opposite in direction, resulting in no change in the object's motion.
In the case of hitting a tennis ball across the court, there are multiple forces acting on the ball. The primary force is the force applied by the player's racket on the ball. However, this force is not the only one acting on the ball. There are also opposing forces, such as air resistance and friction, which may affect the ball's motion.
To assess whether the forces are balanced or not, we need to consider whether the forces in the direction of the ball's motion are equal or not. If they are equal, the forces are balanced, and if they are not equal, the forces are unbalanced.
Looking at the options provided:
1) "No, because equal forces act on the ball from all sides."
This statement is incorrect because it assumes equal forces acting on the ball from all sides. However, there are typically unbalanced forces acting on the ball, such as the force applied by the player's racket.
2) "Yes, because the force in the direction of the ball’s motion is greater."
This statement is incorrect because it assumes that the force in the direction of the ball's motion is greater. If that were the case, the forces would be unbalanced.
3) "No, because the force in the direction of the ball’s motion is greater."
This statement is correct. When a player hits a tennis ball across the court, the force applied by the racket in the direction of the ball's motion is greater than the opposing forces like air resistance and friction. Therefore, the forces in the direction of the ball's motion are unbalanced.
4) "Yes, because equal forces act on the ball from all sides."
This statement is incorrect for the same reasons explained in option 1.
So, the correct answer is "No, because the force in the direction of the ball’s motion is greater."