Homework Help: physics

Posted by Mohammed on Sunday, October 2, 2011 at 11:15am.

A bullet is fired with a speed of 450 m/s through a board 20cm thick. If the bullet is subject to a large deceleration of magnitude 10^6m/s^2, will the bullet be able to emerge from the other side of the board.?

physics - Mohammed, Sunday, October 2, 2011 at 11:35am
i think it will not be able. because
Vf^2=-197500 m/s according to this relation Vf^2=Vi^2+2ax

while x=0.2m, vi= 450 m/s , a=-10^6 m/s^2

is it right or not?

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