Consider the following statement: “When a rifle is fired horizontally, the bullet leaves the barrel and doesn’t drop at all for the first 45 meters of flight.” Is this statement true?

Wouldn't this statement not be true because you don't know the initial position

You are correct in saying that the given statement is not completely true. In order to determine the accuracy of the statement, we need to consider the basic principles of projectile motion.

When a rifle is fired horizontally, the bullet will experience both horizontal and vertical motion simultaneously. While the horizontal motion remains constant (assuming no external forces such as air resistance or wind), the vertical motion is affected by the force of gravity.

According to Newton's laws of motion, the bullet would start falling immediately after leaving the barrel due to gravity's downward force. Therefore, it is inaccurate to state that the bullet does not drop at all for the first 45 meters of flight.

To determine the bullet's drop over a certain distance, you need to consider the initial velocity, angle of projection, and time of flight. With these inputs, you can utilize equations of projectile motion or even use a physics simulator or ballistic calculator to calculate the bullet's drop accurately.