Question

A spring exerts a force of 5 N when stretc
hed 1 m beyond its natural length of 2.4 m. How
much work is done to stretch the spring from its natural length to a length of 4.2 m?
a) find the spring constant
b) how much work is required to stretch the spring from its natural length to a length of 4.2m?

Answer 1

Use
force = k * extenstion to find k
where k is the spring constant

Answer 2

can u?

Answer 3

use the formula force = - k * x
then u can find spring constant and the other required things

Answer 4

for the 2nd part, use W = -U = 1/2 kx^2

Answer 5

x= (4.2 -2.4)

Answer 6

thank you! ill do that now