Question #21616
If i press a book flat against a vertical wall with my hand. what is the direction of the friction force exerted by the wall on the book ?
Expert's answer
The force of friction is always exerted in a direction that opposes movement or potential movement.
Such as the direction of potential movement is down - the direction of the friction force is upwards.
Such as the direction of potential movement is down - the direction of the friction force is upwards.
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#339914 on Dec 2023
#339914 on Dec 2023