A car is moving with velocity 180km/h the breaks are applied to the car and car stops in 5 seconds . calculate the distance traveled by car
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h the breaks are applied to the car and car stops in 5 seconds . calculate the distance traveled by car
Verified answer
Given,
Initial speed u=180 km/h
u=
3600
180×1000
=50 m/s
Final velocity, v=0
Time taken, t=25 s
Acceleration, a
Distance covered, s
Using Newton's first equation of motion,
v=u+at
⟹a=
t
v−u
a=
25
0−50
a=−2 m/s
2
Using Newton's second equation of motion,
s=ut+
2
1
at
2
s=(50×25)+
2
1
(−2)(25)
2
s=625 m