2. Vehicle A breaks down on the railway tracks and train B is travelling with a speed of 120 km/h. The train drivers sees vehicle A at a distance of d away from it and he applies the brakes immediately. After the brakes are applied, the wheels of the train will be locked and the train will slide on the railway tracks. If the kinetic friction coefficient between the wheels and the tracks is Ak 0.2, then determine the minimum distance dmin for avoiding a collision %3D for the following scenarios: (a) (b) The train only has a locomotive with a mass of m The train consists of a locomotive with a mass of m 195000 kg %3D 195000 kg and a string of 10x10 kg. And brakes can be applied to the locomotive and cars whose total mass is m %3D all the cars
2. Vehicle A breaks down on the railway tracks and train B is travelling with a speed of 120 km/h. The train drivers sees vehicle A at a distance of d away from it and he applies the brakes immediately. After the brakes are applied, the wheels of the train will be locked and the train will slide on the railway tracks. If the kinetic friction coefficient between the wheels and the tracks is Ak 0.2, then determine the minimum distance dmin for avoiding a collision %3D for the following scenarios: (a) (b) The train only has a locomotive with a mass of m The train consists of a locomotive with a mass of m 195000 kg %3D 195000 kg and a string of 10x10 kg. And brakes can be applied to the locomotive and cars whose total mass is m %3D all the cars
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Transcribed Image Text:Vehicle A breaks down on the railway tracks and train B is travelling with a speed of
120 km/h. The train drivers sees vehicle A at a distance of d away from it and he applies the
brakes immediately. After the brakes are applied, the wheels of the train will be locked and
the train will slide on the railway tracks. If the kinetic friction coefficient between the wheels
0.2, then determine the minimum distance dmin for avoiding a collision
2.
and the tracks is uk
%3D
for the following scenarios:
(a)
(b)
The train only has a locomotive with a mass of m, = 195000 kg
The train consists of a locomotive with a mass of mi
= 195000 kg and a string of
cars whose total mass is m = 10x10 kg. And brakes can be applied to the locomotive and
%3D
all the cars
(c)
Like (b), but brakes can only be applied to the locomotive
A
B
d
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