Question

A car starting from rest acquire a velocity of 54 km /h in 5 second. calculate (1) Accelaration (2) Distance

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Answer 1

Hoi mate hers your answer

A car starting from rest means it's initial velocity is 0 , i.e u = 0

=> v ( final velocity ) = 54 km / h = 54 × 1000 / 3600 m /s

=> v ( final velocity ) = 15 m /s

=> t = 5 second

So ,

( a )

=> a = v - u / t

=> a = 15 / 3

=> 3 m / s^2

( b )

=>s = u × t + 1 / 2 a × t^2

=> s = 1 / 2 a × t^2

=> s = 1 / 2 × 3 × 25

= 37.5 m

so your answer is 37.5, hoped it helped you

mark me as brainiest plz

Answer 2

a car starting from rest acquire velocity =54km/h

time =5second

acceleration=change in velocity/time taken

here given second

so,convert km into m

then ,54km=54000m

54000/5=1800m

acceleration=1800m