Question

7. Knives, needles, saws are made sharp or pointed to * decrease pressue Ο Ο increase pressure O increase area none of the above​

Answer 1

Increase pressute iiyu

Answer 2

Knives, needles , saws are made sharp or pointed to increase area.

• On a surface area A by force F , the pressure P can be given as P = F / A

• Pressure acting on small surface area is large as compared to that on a large surface area .
• Pointed objects or cutting of objects will have small surface area with sharp edges.
• With small surface area pressure acting on them will be larger .