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NEET 2021 Model Test Paper 8
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© examsnet.com
Question : 4
Total: 180
In a car race, car A takes
t
0
time less to finish than car B and passes the finishing point with avelocity
v
0
more than car B. The cars start from rest and travel with constant acceleration
a
1
and
a
2
. Then the ratio
v
0
t
0
is equal to :
a
1
2
a
2
a
1
+
a
2
2
√
a
1
a
2
a
2
2
a
1
Validate
Solution:
Let s be the distance travelled by each car.
Then
√
2
a
1
s
−
√
2
a
2
s
=
v
0
and
√
2
s
a
2
−
√
2
s
a
1
=
t
0
∴
v
0
t
0
=
√
a
1
−
√
a
2
1
√
a
2
−
1
√
a
1
=
√
a
1
a
2
© examsnet.com
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