Question

A bus decreases its speed from 80 km/h in 5s find acceleration of the bus

Answer 1

80 km/h to 0km/h?

Answer 2

because then its (Vf-Vi)/time=Acc.
so (80-0)/5=Acc.
Acc=16

Answer 3

V(t)=U+at
v(t)=0
U=80km/hr=22.22 m/s
t=5s
\[V(t)=U+at\]
\[0=22.22+(a*5)\]
\[a=-22.22/5\]
\[a-4.44m/s^2\]

Answer 4

i think this is wrong