A bus increases its speed from 20 km/h to 50 km/h in 10 seconds. Find its acceleration
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Answered by
1
v=50×5÷18=250÷18m/s
u=20×5÷18=100÷18m/s
a=250÷18-100÷18÷10
=15/18ms^-2
u=20×5÷18=100÷18m/s
a=250÷18-100÷18÷10
=15/18ms^-2
Answered by
2
Convert 20km/hr into m/s it is 5.56m/s
Convert 50km/hr into m/s it is 13.89m/s
so,
inital velocity(u)=5.56m/s
final velocity(v)=13.89m/s
time(t)=10 s
now
acceleration=(v-u)/t
a= (13.89-5.56)/10
∴a=0.833 m/s^2
Convert 50km/hr into m/s it is 13.89m/s
so,
inital velocity(u)=5.56m/s
final velocity(v)=13.89m/s
time(t)=10 s
now
acceleration=(v-u)/t
a= (13.89-5.56)/10
∴a=0.833 m/s^2
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