Question

170 : What force will be required to punch a hole of 10 mm dia in a 1 mm thick plate, if the allowable shear stress is 50N/mm?? (n = 22/7) A: 1757 N B : 1575 N C: 1571.4 N D: 1577 N​

Answer 1

Answer:

A)1757 is a answer of this question

Answer 2

Answer: F = 3928.5N

Explanation:

we know that stress = F/A-50 N/mm^2

Area = pi r^2

so, 50 = F/pi 5^2

F = 3928.5 N