Question

3 multiple answer 1 point a ball is thrown upwards at an angle of 45 degrees from the horizontal by a student. while it flies through the air, what is true of the balls acceleration? select all true statements. the acceleration in the y direction is -9.8 m/s² the acceleration in the x direction is 0 m/s² the acceleration in the y direction is 0 m/s² the acceleration in the x direction is -9.8 m/s²

Explanation:

In projectile motion (Physics, a subfield of Natural Science), when a ball is thrown, the only force acting on it (ignoring air resistance) is gravity. Gravity causes an acceleration of \( -9.8 \, \text{m/s}^2 \) (downward, so in the y - direction). In the x - direction, there is no force (no air resistance considered), so the acceleration in the x - direction is \( 0 \, \text{m/s}^2 \). So the true statements are "The acceleration in the y direction is \( - 9.8 \, \text{m/s}^2 \)" and "The acceleration in the x direction is \( 0 \, \text{m/s}^2 \)".

Answer:

• The acceleration in the y direction is \( -9.8 \, \text{m/s}^2 \)
• The acceleration in the x direction is \( 0 \, \text{m/s}^2 \)