Answer:
215955.06 m/s^2
Explanation:
length of barrel, s = 0.89 m
initial velocity of the bullet, u = 0 m/s
Final velocity of the bullet, v = 620 m/s
Let a be the acceleration of the bullet in the barrel
Use third equation of motion, we get


a = 215955.06 m/s^2
Thus, the acceleration of the bullet inside the barrel is 215955.06 m/s^2.
it is true. the trajectory reaches the value of zero at the top
Answer:
The answer is 2 because the formula is
wavelength=speed/frequency
26.5, I’m not sure if it’s right but 1060/40 gets that