A bus moving with the velocity of 60km/hr brought to rest in20s by applying brakes. Find its acceleration.
Answers
Answered by
159
it's deceleration
a = v - u /t
v = 60*5/18 =16.6 m/s
a = 0 -16.6/20
a = -0.83 m/s2
a = v - u /t
v = 60*5/18 =16.6 m/s
a = 0 -16.6/20
a = -0.83 m/s2
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Answered by
216
u= 60km/hr × 5/18 = 50/3 m/sec
v= 0
t= 20s
a= ?
we know that-
a = v-u/t
a = -50/3 /20
a= -50/60
∴ a = -0.83m/sec²
negative sign shows that it is a retarded motion.
so its acceleration is 0.83 m/sec²
v= 0
t= 20s
a= ?
we know that-
a = v-u/t
a = -50/3 /20
a= -50/60
∴ a = -0.83m/sec²
negative sign shows that it is a retarded motion.
so its acceleration is 0.83 m/sec²
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