Question

If a cannonball with a perfect horizontal velocity of 80 m/s flies 320 m before hitting the ground, then how much time was the cannonball in the air?

Option 1: 4 seconds
Option 2: 8 seconds
Option 3: 12 seconds
Option 4: 16 seconds

Answer 1

The time the cannonball was in the air is determined by calculating the distance traveled divided by the horizontal velocity. With a horizontal velocity of 80 m/s and traveling 320 m, the time of flight for the cannonball is 4 seconds.

Step-by-step explanation:

When a cannonball is fired with a perfect horizontal velocity of 80 m/s and travels 320 m before hitting the ground, we can determine the time it was in the air by using the horizontal motion equation:

Distance = Velocity × Time

Given:
- Distance = 320 m
- Velocity = 80 m/s
We rearrange the equation to solve for Time:

Time = Distance /Velocity

Time = 320 m / 80 m/s = 4 seconds.

Therefore, the cannonball was in the air for 4 seconds. So, the correct option is 1: 4 seconds.