A bicycle increases its speed
from 10m/h to 15m/h in
6 seconds. Calculate its
acceleration..
Answers
QUESTION-
A bicycle increases its speed
from 10m/h to 15m/h in
6 seconds. Calculate its
acceleration..?
||ANSWER ||
Given:
Vf=15km/hr (converted to 54m/s)
Vi=10km/hr (converted to 36m/s)
t=6s
Unknown:
a=m/s
Equation:
a=Vf-Vi/t
(converting) 1km=1000m
(converting) 1hr=3600s
Substitution:
10km 1km 3600s 36,000
--------×------- ×-------- = ----------- = 36m/s
hr 1000m 1hr 1000
15km 1km 3600s 54,000
-------×--------× -------- = ---------- =54m/s
hr 1000m 1hr 1000
Now you got the 2Convertions...
a=Vf-Vi / t
a=54m/s - 36m/s / 6s
a=3m/s^2
Answer:
hey friend here is the ans
as acceleration is change in velocity/ time
so ∆V= 15-10= 5m/ h
but time is in sec so
convert 5m/h is m/s as 5m/3600s then
a= 5/3600÷6 which will give 5/600 i.e 0.008 m/ s^2
hope it will help you.
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