Question

A spring has a natural length of 10 cm and a spring constant of 150 n/m. What is the magnitude of the force required to stretch this spring to a length of 11 cm?

Answer 1

Hey dear,

◆ Answer-
F = 1.5 N

◆ Explaination-
# Given-
l = 10 cm
l' = 11 cm
k = 150 N/m

# Solution-
Extension produced in the spring is
x = l' - l
x = 11 - 10
x = 1 cm = 0.01 m

Force required to stretch the spring is equal fo restoring force.
F = kx
F = 150 × 0.01
F = 1.5 N

Therefore, force of 1.5 N is required to stretch the string.


Hope it helps...