wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

A spring of force constant 800Nm-1 has an extension of 5cm. The work done in extending it from 5cm to 15cm is


A

16J

No worries! We‘ve got your back. Try BYJU‘S free classes today!
B

8J

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
C

32J

No worries! We‘ve got your back. Try BYJU‘S free classes today!
D

24J

No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is B

8J


Step 1: Given data

Force constant k=800Nm-1

Step 2: Find work done

The work done is given by,

W=(1/2)k(x22x12)W=(1/2)x800x(0.1520.052)W=(1/2)x800x(0.02250.0025)W=400x0.02W=8N/mW=8J

Hence, option B is correct.


flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Dot Product
MATHEMATICS
Watch in App
Join BYJU'S Learning Program
CrossIcon