A monorail train starts from rest on a curve of radius 4 accelerates at the constant rate a, . If the maxin acceleration of the train must not exceed 1.5 m/s2², (a) the shortest distance in which the train can reach a 72 km/h, (6) the corresponding constant rate of accel

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A monorail train starts from rest on a curve of radius 400 m and
accelerates at the constant rate a, . If the maximum total
acceleration of the train must not exceed 1.5 m/s2, determine
(a) the shortest distance in which the train can reach a speed of
72 km/h, (b) the corresponding constant rate of acceleration a,;
The shortest distance is 158.9 m
O and the corresponding acceleration
is 0.94 m s^-2
The shortest distance is 178.9 m
O and the corresponding acceleration
is 1.12 m s^-2
The shortest distance is 198.9 m
O and the corresponding acceleration
is 1.30 m s^-2
O None of the choices
Transcribed Image Text:A monorail train starts from rest on a curve of radius 400 m and accelerates at the constant rate a, . If the maximum total acceleration of the train must not exceed 1.5 m/s2, determine (a) the shortest distance in which the train can reach a speed of 72 km/h, (b) the corresponding constant rate of acceleration a,; The shortest distance is 158.9 m O and the corresponding acceleration is 0.94 m s^-2 The shortest distance is 178.9 m O and the corresponding acceleration is 1.12 m s^-2 The shortest distance is 198.9 m O and the corresponding acceleration is 1.30 m s^-2 O None of the choices
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