when a car a driver travelling at a speed of 10m/s applies break and bring the car to rest in 20s,then the retardation will be?
Answers
Answered by
8
Answer:
Explanation:
A car driver is traveling at a speed of 10m/s .
e.g., initial velocity , u = 10m/s
He applied break and brings to the car to rest in 20s.
so, time taken to stop the car = 20s
we have to find retardation.
final velocity of car , v = 0
use formula, v = u + at
0 = 10 + a20
a = -1/2 m/s² [hereative sign shows retardation ]
Answered by
6
Answer:
u = 10 m/s
v = 0
time = 20s
retardation = v-u /t
= -10/20
= -1/2 m/s²
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