Question

a bus descrrise its speed from 80 km hr to 50 km per h in 4 sec find its asselaration​

Answer 1

Answer:

initial vecocity= 80kmph

or 80*5/18m/s=22.22m/s

final velocity=50kmph

or50*5/18m/s=13.88 m/s

time=4s

acceleration

=(v-u)/t

=(13.88-22.22)/4

=-8.34/4 m/s2

=2.085m/s2