Physics Help Forum Laws of Motion: Recoil Acceleration?

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 Oct 20th 2018, 11:42 PM #1 Junior Member   Join Date: Oct 2018 Posts: 1 Laws of Motion: Recoil Acceleration? Hi everyone, I have NO CLUE how to even start this problem! Please help! If a 1100kg artillery shell is fired from a 100,000kg battleship with an acceleration of 2000m/s^2, then what is the recoil acceleration of the ship?
Oct 21st 2018, 12:39 AM   #2

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 Originally Posted by helpmeimdying Hi everyone, I have NO CLUE how to even start this problem! Please help! If a 1100kg artillery shell is fired from a 100,000kg battleship with an acceleration of 2000m/s^2, then what is the recoil acceleration of the ship?
Newton's third. If the artillery shell has a force acting on it by the ship the ship has a force acting on it by the artillery shell. These forces are equal.
1) What's the force on the artillery shell?

2) What's the force on the ship?

3) Thus, what is the acceleration of the ship?

-Dan
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 Oct 21st 2018, 01:10 PM #3 Senior Member   Join Date: Jun 2010 Location: NC Posts: 405 help us, we're all dying! Sir, Your physical scenario is similar to this P-51 problem which I link FYI. P-51 Mustang | THERMO Spoken Here! JP

 Tags acceleration, laws, motion, recoil

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