a car increases its speed from 15km/h to 30km/hr in 12 seconds its acceleration is a.30m/s². b.0.3m/s² c.50m/s² d.18m/s²
Answers
Answered by
15
Answer:
Here given ------
v= 30km/h
u= 15km/h
t = 12 sec. = 12 /3600 = 1/300
a = ?
We know that ------
v = u + at
30 = 15 + 1/300a
1/300a = 30 - 15
1/300a = 15
a = 15 / 1/300
a = 300 /15
a = 20 km/h
a = 1000 / 20
a = 50m/s^2
Answered by
2
Answer:
A according to me option c is correct answer of this.
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