Question

a 20 kg projectile has a velocity og 600 m/s. the shell acquired the velocity in a mortar (barrel) 3m long. Determine the magnitude of the average force against the shell as it was fired.

Answer 1

help

Answer 2

First Find the acceleration

Answer 3

V^2 - u^2 = 2as

Answer 4

a=?

Answer 5

find....

Answer 6

a= V-Vo/t

Answer 7

we r not given time lol

Answer 8

so use this V^2 - u^2 = 2as

Answer 9

@experimentX

Answer 10

1.2 * 10^5

Answer 11

wat is ur answer @experimentX

Answer 12

I FOUNDED

Answer 13

icant get it

Answer 14

Do u have answer key

Answer 15

no

Answer 16

wew

Answer 17

its an example in my book and i dont know how to anwer

Answer 18

Maybe seeing it all worked in one post will help:
\[V_i=0m/s\]\[V_f=600m/s\]\[s=3m\]\[m=20kg\]\[V_f^2-V_i^2=2as\]\[(600m/s)^2-(0m/s)^2)=2(a)(3m)\]\[a=60,000 m/s^2\]\[F=ma=(20kg)(60,000m/s^2)=1.2x10^6N\]