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