J
Jason H
Guest
Suppose that 2 J of work is needed to stretch a spring from its natural length of 30 cm to a length of 42 cm.
a. How much work is needed to stretch the spring from 35 cm to 40 cm?
b. How far beyond its natural length will a force of 30 N keep the spring stretched?
Thank you for all the help.
a. How much work is needed to stretch the spring from 35 cm to 40 cm?
b. How far beyond its natural length will a force of 30 N keep the spring stretched?
Thank you for all the help.