Question

a car starting from a house and moving uniform acceleration attain a speed 80 kilometre per hour in 10 minutes find its acceleration

Answer 1

Velocity=80Km/h

time taken=10 minute

=10×1/60 h

=1/6 h

acceleration=Velocity/time

=80/1/6=80×6/1=480Km/h^2

Answer 2

Intial Velocity when Car Started(u)=0 km/h

Final Velocity (v)=80 km/h

Time(t)=10 minutes
=10/60 hours
=1/6 hours

We Got

Intial Velocity (u)=0 km/h

Final Velocity (v)=200/9 km/h

Time(t)=1/6 hours

Using Equation of Motion.
$\underline{\mathbf{\huge{v=u+at}}}$

80=0+a×1/6

80-0=a×1/6

80×6=a

a=480 km/h²

$\boxed{\mathbf{\huge{Accerlation={480\:km/h}^{-2}}}}$