Question

a bicycle increases its velocity from 10 km per hour to 15 km per hour in 6 seconds calculate its acceleration in metre per second square

Answer 1

u = 10km/h
v = 15km/h
t = 6sec.
acc. v - u by t
convrt 6 sec into hour = 6/3600 = 0.01
now,
15 - 10 / 0.01 = 5/0.01
= 500 km/h
${?}^{2}$

Answer 2

Initial velocity of bicycle is,u=10km/h=2.77m/s
Final velocity of bicycle is,v=15km/h=4.16m/s
Time taken,t=6s
Acceleration,a=(v-u)/t
=(4.16-2.77)/6
=1.39/6
=0.23166666......m/s