Question

5 - 5 a bullet is fired horizontally from a high - powered rifle. at the same time, a second bullet is simply dropped from the same height as the bullet which was fired from the rifle. neglecting air resistance, which statement is true about the acceleration of the first bullet after it leaves the gun compared to that of the second bullet as it falls?
○a. the acceleration of the first bullet is much less than the acceleration of the bullet that was dropped.
○b. the acceleration of the first bullet is a little less than the acceleration of the bullet that was dropped.
○c. the acceleration of the first bullet is the same as the acceleration of the bullet that was dropped.
○d. the acceleration of the first bullet is a little more than the acceleration of the bullet that was dropped.
○e. the acceleration of the first bullet is much more than the acceleration of the bullet that was dropped.
5 - 6 a raindrop, as it falls to the ground, reaches a speed known as terminal velocity where the speed of the raindrop is neither increasing nor decreasing. this motion of the raindrop at terminal velocity can be understood in terms of:
○a. one vertical force
○b. one horizontal force

Explanation:

Step1: Analyze forces on bullets

Both bullets are only under gravity when air - resistance is neglected.

Step2: Recall acceleration due to gravity

The acceleration due to gravity \(g\) is the same for all objects near the Earth's surface, regardless of their horizontal motion. So the acceleration of both bullets is \(g\).

Answer:

C. The acceleration of the first bullet is the same as the acceleration of the bullet that was dropped.