Question

A rifle is aimed horizontally at a target 60 m away. The bullet hits the target 2.3 cm below the aim point.

What was the bullet's flight time? Neglect the air resistance.

Express your answer with the appropriate units.

Answer 1

To find the bullet's flight time, we can use the projectile motion equation and solve for time. In this case, since the bullet is aimed horizontally, the initial vertical velocity is 0, simplifying the equation. Substituting the given values, we can solve for the flight time.

Step-by-step explanation:

To find the bullet's flight time, we can use the equation:

Δy = vyt + (1/2)gt2

Since the bullet is aimed horizontally, the initial vertical velocity is 0, and the equation simplifies to:

Δy = (1/2)gt2

Substituting the given values, we have:

0.023 m = (1/2)(9.8 m/s2)t2

Solving for t, we get:

t = √(0.046/9.8) s