CBSE Class 7 Answered
Why sharp knife cut the vegetables faster than the blund knife .
Asked by Sanjay | 20 Apr, 2017, 07:26: PM
Expert Answer
Pressure is force per unit area. So, pressure is inversely proportional to force. Sharp knife has a smaller area of application than a blunt knife. If we cut vegetables with a blunt knife, a larger force would be required to create the pressure necessary to cut the vegetables. However, if we cut the vegetables with a sharp knife, less force is enough to cut them.
Answered by Romal Bhansali | 21 Apr, 2017, 03:04: PM
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