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ICSE Class 9 Answered

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Asked by minalbhute04 | 03 Jul, 2020, 12:59: PM
Expert Answer
Question: - A car starts from rest after 8 s its velocity becomes 72 m/s. Find acceleration of a car. 
Solution - 
As car starts from rest
initial velocity, u = 0 
final velcoity is, v = 72 m/s
t = 8 s 
Acceleration, a = ?
By first equation of motion, 
v = u+at 
72 = 0 + a (8) 
a = 9 m/s2 
Thus, acceleration of car is 9 m/s2  
Answered by Shiwani Sawant | 05 Jul, 2020, 01:42: PM

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