Question

# #Work-Energy Theaem -
as 'Ikg' block is compressed by Am
and released. Find maximum height
achieved by Ilog block.
KSONIM
momo
smooth
2=4m
Solution​

Answer 1

Answer:

A massless block attached to a spring, pulled by a constant horizontal force, is kept on a smooth surface as shown in Fig. 8.240. initially, the spring is in the natural length state. Then the maximum positive work that the applied force F can do is (given that spring does not break)

Explanation:

Given,

Constant force =F

Spring constant =k

Force in spring = constant force

kx=F

Maximum displace x=

k

F

Work done by force F will be stored in the spring as its potential.

Stored potential in the spring, U=

2

kx

2

=W

Putting the value of x in the above expression;

W=

2k

F

2

Thus, the maximum positive work that the force F can do is

2k

F

2

.