A bus starts from rest and attains 40km/h velocity after 10seconds.Calculate the acceleration of the bus a) km/h square b) m/s square
Answers
Answered by
1
initial volocity = u = 0km/h = 0m/s
final velocity = v = 40km/h = 40000/3600 = 11.11m/s
time = t = 10 s = 10/3600 = 0.0028 h = 28×10^-4 h
acceleration = a = ?
________________________________________
a)
a = (v-u)/t
a = (40km/h-0km/h)/0.0028
a = 40km/h/0.0028h
a = 14285.71 km/h²
__________________________
b)
a = (v-u)/t
a = (11.11m/s-0m/s)/10s
a = 11.11 m/s /10s
a = 1.111 m/s²
__________________________
final velocity = v = 40km/h = 40000/3600 = 11.11m/s
time = t = 10 s = 10/3600 = 0.0028 h = 28×10^-4 h
acceleration = a = ?
________________________________________
a)
a = (v-u)/t
a = (40km/h-0km/h)/0.0028
a = 40km/h/0.0028h
a = 14285.71 km/h²
__________________________
b)
a = (v-u)/t
a = (11.11m/s-0m/s)/10s
a = 11.11 m/s /10s
a = 1.111 m/s²
__________________________
Similar questions