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Byju's Answer
Standard XIII
Physics
Average acceleration
A car increas...
Question
A car increases its speed from
20
km/h
to
30
km/h
in
1
s
then its acceleration is -
A
2.78
m/s
2
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B
5
m/s
2
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C
7
m/s
2
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D
3.32
m/s
2
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Solution
The correct option is
A
2.78
m/s
2
We know that, acceleration,
a
=
Δ
v
Δ
t
⇒
a
=
30
×
5
18
−
20
×
5
18
1
=
2.78
m/s
2
Suggest Corrections
0
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