+91-9828-747676
Question
If there are two springs A and B of stiffness KA and KB respectively, and if KA > KB, then on application of the same force, work done is more in
A.
B
B.
A
C.
Same in both
D.
Information insufficient
Answer ( Option A)

B

Solution

The work done by a spring is given by the equation:
     
Where W is the work done, k is the stiffness of the spring, and x is the displacement of the spring from its equilibrium position.
If we apply the same force to both springs A and B, the displacement x will be different for each spring because the stiffness KA is greater than KB. This means that for the same force, spring A will be stretched or compressed less than spring B.
Since the work done is directly proportional to the square of the displacement, the spring with a larger displacement will do more work. In this case, since spring B has a larger displacement than spring A, the work done will be more in spring B.
Hence, the correct option is (a)

Popular Online Test Serie

Preparing students for success in a changing World.

RPSC-AE

RPSC-AE
RSSB-JE

RSSB-JE
SSC-JE

SSC-JE
RRB-JE/SSE

RRB-JE/SSE
RSEB-JE/AE

RSEB-JE/AE
DRDO CEPTAM -10 (STA-B)

DRDO CEPTAM -10 (STA-B)

ISRO Scientist Engineer

ISRO Scientist Engineer
View All

Online Classes

We care about our students

View More


banner
banner
banner
banner
banner
Online Classes
Register Now
Test Series
Register Now
Job Notification
Job Notification

Daily Quiz

RPSC-AE, RSMSSB-JE, SSC-JE, RRB-JE, PSU's