Final answer:
The muzzle velocity of a bullet accelerated in a gun at 6.20 × 10^5 m/s^2 for 8.10 × 10^-4 s is 502.20 m/s. The calculation is based on the formula for final velocity with constant acceleration.
Step-by-step explanation:
The student has asked what the sustained rate of fire of the M16A2 rifle is; however, the question does not provide the information necessary to answer that specific question. Instead, the information provided allows for calculation of a bullet's muzzle velocity. To find the muzzle velocity of a bullet in a gun accelerated from the firing chamber to the end of the barrel at an average rate of 6.20 × 105 m/s² for 8.10 × 10-4 s, we use the formula for final velocity (v) with constant acceleration:
v = at
Where:
- a is the average acceleration
- t is the time
Plugging in the given values:
v = (6.20 × 105 m/s²)(8.10 × 10-4 s) = 502.20 m/s
Therefore, the bullet's muzzle velocity is 502.20 m/s.