Question

. Figure here shows the frictional force versus displacementfor a particle in motion. The loss of kinetic energy in travellingover s= 0 to 20 m will be
[2015]
(a) 250 J
(b) 200J
(c) 150J
(d) 10J
​

Answer 1

Answer:

Simple just add 100 to the given data and the giant permit at the end of the month award is the best for ur new show on Sony TV is not his wife to make a film on his way of doing something wrong in it as he was not the least I was not the first man of all that ever ever seen the latest

Answer 2

Loss in kinetic energy is equal to the work done by the frictional force

=

∫

→

f

.

→

d

x

Thus work done is equal to the area under the given curve. Therefore area is given by,

=

(

1

2

×

(

5

+

15

)

×

5

)

+

(

15

×

5

)

+

(

1

2

×

(

15

+

10

)

)

×

10

)

=

250

J