Question

velocity v=
$10 \sqrt{x}$
then work done during motion from x=4m to x=9m is ? (if mass is 1 kg)
​

Answer 1

Answer:

hii I think that it helps you

Explanation:

W=KE

f

−KE

i

W=KE

f

−

2

1

mv

2

F−dx=KE

f

−

2

1

×10×10

2

−0.1xdx=KE

f

−500

0.1∫

20

30

xdx=KE

f

−500

0.1[

2

x

2

]

20

30

=KE

f

−500

=

2

0.1

[(30)

2

−(20)

2

]=KE

f

−500

−25=KE

f

−500

KE

f

=475J