) A car starting from rest attains a velocity of 54 km/ hr in 5 minutes. Assume the car is
moving with uniform acceleration. Find a ) magnitude of acceleration b ) distance travelled by
the car.
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Answer:
hai Varsha copping the answer and writing the test
Explanation:
iam bala
Answered by
2
Answer:
(a) 0.05m/sec² ,(b) 22.5 meter
Explanation:
given , initial velocity (u)= 0
time taken (t) = 5 minutes = 300 sec
final velocity (v) = 54km/h= 54×10/36 m/sec
= 15m/sec. ,. acceleration (a)= ?
(a)
since, v= u+at=> 15= 0+a×300
=> a= 15/300 m/sec² = 0.05m/src²
(b)
since , v²= u²+2as
=> 15²= 0²+2× 0.05× s
=> s = 225/0.1= 22.5 meter
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