Final answer:
To calculate the time it takes for a bullet to travel 1 km at a velocity of 850 m/s, divide the distance by the velocity.
Step-by-step explanation:
To calculate the time it takes for a bullet to travel 1 km at a velocity of 850 m/s, we can use the formula time = distance/velocity. Firstly, we need to convert 1 km to meters by multiplying it by 1000. So, 1 km = 1000 m. Now, we can substitute the values into the formula: time = 1000 m / 850 m/s = 1.176 s.