Question

3. A bicycle increases its velocity from 10 km/hr to15 km/hr in 6 seconds. Calculate its acceleration.

Answer 1

hello friend here is your answer!!

u is 10km/h
that is 10×1000/60×60 m/s
that is 2.77778 m/s

v is 15 km/h
that is 15×1000/60×60 m/s
that is 4.16667 m/s

time is 6 sec

a = v-u/t
a= 4.16667-2.77778/6
a= 0.231482

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Answer 2

Initial velocity=10km/hr=10×5/18=27.7m/s
Final velocity=15km/hr=15×5/18=4.16m/s
a=v-u/t
a=25/6-25/9/6
a=75-50/18/6
a=25/18/6
a=1.38×1/6
a=138/100×1/6
a=23/100
a=0.23m/s^-2
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