a bus decreases its speed from 80km/h to 50km/h in 4s . find the acceleration for the bus ?
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80 km/hr into m/s=80*5/18=200/9 m/s=initial velocity
60 km/hr into m/s=60*5/18=150/9m/s=final velocity
a=v-u/t t=5s
a=150/9-200/9/5
=-50/9/5/1
a=-50/9*1/5
a=-10/9m/s square
so, a=1.1m/s square
60 km/hr into m/s=60*5/18=150/9m/s=final velocity
a=v-u/t t=5s
a=150/9-200/9/5
=-50/9/5/1
a=-50/9*1/5
a=-10/9m/s square
so, a=1.1m/s square
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