We can use the formula:
average net force = (mass of the bullet) x (change in velocity) / (time taken)
The change in velocity is the final velocity (715 m/s) minus the initial velocity (which is 0 m/s because the bullet starts at rest in the barrel):
change in velocity = 715 m/s - 0 m/s = 715 m/s
Substituting the given values into the formula:
average net force = (0.015 kg) x (715 m/s) / (2.50×10^-3 s) = 429,000 N
Therefore, the average net force exerted on the bullet is 429,000 N.
A 15 g bullet is fired from a rifle, it takes 2.50×10^-3 s for the bullet to travel the length of the barrel, and it exits with the speed of 715 m/s. Assuming that the acceleration of the bullet is constant, find the average net force exerted on the bullet
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