Question

a bus accelerates uniformly from 54 kilometre per hour to 72 kilometre per hour in 10 seconds calculate its acceleration​

Answer 1

Answer:

0.5

Explanation

u=54×5÷18=15m/s

v=72×5÷18=20m/s (convert everything into SI unit)

t=10s.

v = u + at

20=15 + 10a

a=5/10=1/2

Answer 2

Answer:

we know that

acceleration=final velocity-initial velocity/time

so,

Explanation:

a=v-u/t

=72-54/60seconds

=18/60

=3/10km/s

Hence,300m/s is acceleration