explain the following with the concept of force and pressur - 1.It is difficult to cut something with a wooden scale but easy to cut with a knife.
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Answer:
Explanation:
Pressure = Force / Area;
pressure is the deciding factror to cut the material using knife.
if the knife is sharp, contact area with the material to be cut is less. If it is blunt, contact area will be more.
hence for the given force, pressure is more with sharp knife and pressure is less with blunt knife.
Hence sharp knife cut the material easier than blunt one.
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