a bus decreases its speed from 80 km/hr to 60 km/hr in 5sec find the acceleration of the bus
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speed(u)=80km/hr
speed (v)=60 km/hr
Time= 5/3600 km/hr
acceleration = v-u /t
= 20×3600/5
=14400km/hr (4000m/s)
speed (v)=60 km/hr
Time= 5/3600 km/hr
acceleration = v-u /t
= 20×3600/5
=14400km/hr (4000m/s)
ritesh131:
wrong the stype
acceleration= V-U/t
since acceleration is in negative it is retardation
and that is clear
your steps is wrong
60- 80 = -20 then acceleration is negative
brother go check on Internet that what is retardation
ok
since bus is slowing down so decreasing speed acceleration is 4000m/s
bur bro U = 60 , V = 80 is right
Answered by
0
speed = 80km/ hr= 80000/ 60m/s= V , 60km/hr= 60000/60m/s= u ,t= 5sec acceleration= V-U/t. acceleration= 80000- 60000/5. acceleration= 4000m/s
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