1. The problem statement, all variables and given/known data Why does a sharp knife cut better than a dull knife? Explain using Newton's Laws. 3. The attempt at a solution 1st Law: Since the sharper knife has less surface area, it keeps more better than the dull knife. The friction is less. 2nd Law: Less surface area on knife means more acceleration means more force. 3rd Law: Less opposing force because of less surface area? Please correct me if I'm missing something. Thanks.