(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

An 8.9 g bullet leaves a rifle's muzzle at 456.6 m/s. The barrel is 0.5 m long.

What is the force exerted on the bullet as it travels the length of the barrel? Answer in N.

2. Relevant equations

F = ma

V = d/t (so T = d/v)

a = v/t

3. The attempt at a solution

I tried to do this:

1: T = d/v = 0.5 m / 456.6 m/s = 0.0011 s

2: A = v/t = 456.6 m/s / 0.0011 s = 416967.12 m/s^2

3: F = ma = 0.0089 kg * 416967.12 m/s^2 = 3711.0073 (kg∙m)/s^2

No love.

Anyone see anything glaringly wrong?

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# Homework Help: Calculating force on a bullet, given mass + velocity + barrel length

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