Question

A wire of length 2.5 m and area cross section 1×10^-6m2 has mass of 15kg hanging on it. How much energy stored in extended wire if young modulus of wire 2×10^11N/m2 ?

Answer 1

Answer:

◆ Answer-

F = 150 N

◆ Explanation-

# Given-

L = 2.5 m

A = 1.5×10^-6 m^2

x = 2 mm = 2×10^-3 m

Y = 1.25×10^11 N/m^2

# Solution-

Tension produced in the wire is given by-

F = YAx / L

F = 1.25×10^11 × 1.5×10^-6 × 2×10^-3 / 2.5

F = 150 N

Therefore, tension produced in the wire is 150 N.

Hope that was useful..