the velocity of car increases from 15km /h to 33km/h in 20 s find is acceleration
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Acceleration is change in velocity per unit time
a=
(t
2
−t
1
)
(v
2
−v
1
)
v
2
−v
1
=30kmph= 30×(5/18)m/s
=
3
25
m/s
t
2
−t
1
=10s
a=
(3×10)
25
=
6
5
m/s
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