A spring 40mm long is stretched by the application of a force. If 10N force required to stretch the spring through 1mm, then work done in stretching the spring through 40mm is
A
84J
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
68J
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
24J
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
8J
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
Open in App
Solution
The correct option is D8J We know that work done by the spring force is given by Ws=12kx2