Question

A spring gets deflected by 25m when 50 kN load is applied over it. The value of spring stiffness and work required to stretch the spring from 10m to 20 m are??
a)2000 kN/m & 400 kN-m
b) 2000 N/m & 300 kN-m
c )1250 kN/m & 400 kN-m
d) 1250 kN/m & 300 kN-m​

Answer 1

Answer:

f=kx

k=f÷x

=50/25=2kN/m=2000N/m

w=fs

see,the option b should be ans

hope so helpful...