February 27, 2017

Homework Help: Physics (Normal Force)

Posted by Ben on Thursday, October 1, 2009 at 2:01am.

When a book weighing 10 N is placed on a table, the table exerts a normal force of 10 N on the book. When a crate weighing 250 N is placed on the same table, the table exerts a normal force of 250 N on the crate. Explain the mechanism that allows the table to exert just the right normal force to balance the weight of the object. Is there any limit to how large the normal force can be?

This is what I have so far:

I am not sure about the mechanism, but for the second part, I said that there is a limit. This limit is until the table breaks due to the force. For the first part, I am not sure how to approach it. I have searched in my textbook but I've had no luck.

Thank you for your help.

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