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AP EAMCET Engineering 2014 Code A Solved Paper
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© examsnet.com
Question : 90
Total: 160
A bus moving on a level road with a velocity V can be stopped at a distance of x, by the application of a retarding force F. The load on the bus is increased by 25% by boarding the passengers. Now, if the bus is moving with the same speed and if the same retrading force is applied, the distance travelled by the bus before it stops is,
x
5x
2.5x
1.25x
Validate
Solution:
v
2
−
u
2
=
2
a
s
=
2
(
F
m
)
s
−
u
2
=
−
2
(
F
m
)
s
s
∝
m
⇒
s
1
s
2
=
m
1
m
2
⇒
x
s
2
=
m
5
4
m
⇒
s
2
=
5
x
4
=
1.25
x
© examsnet.com
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