# Newton's Third Law of Motion - Help!

Got it!

Last edited:

Nathanael
Homework Helper
Ignore all the information for a moment. Just think, what things do you need to know to find the answer?
Once you know what you're looking for, then you can try to use all the information in the problem to find whatever it is you need to know.

Ignore all the information for a moment. Just think, what things do you need to know to find the answer?
Once you know what you're looking for, then you can try to use all the information in the problem to find whatever it is you need to know.
I was thinking projectile motion but then I ignored that. I think I would need the force exerted by the ball on the canon and vice versa and then apply it. Is this correct?

Nathanael
Homework Helper
I was thinking projectile motion but then I ignored that. I think I would need the force exerted by the ball on the canon and vice versa and then apply it.
Okay, try to find this from the given information.

haruspex
Homework Helper
Gold Member
I was thinking projectile motion but then I ignored that. I think I would need the force exerted by the ball on the canon and vice versa and then apply it. Is this correct?
I suggest working backwards. What would you like to know about the state of the canon just after the shot has been fired?

haruspex