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starting from rest at station A, a train accelerates at 0.7m/s2 for 22 seconds to reach point B, from which point it further accelerated at 1.4 m/s2 to reach point C where it attains a speed of 85kn/h. it then decreases until it comes to rest at station D after travelling a distance of 1.85kn from C to D. Using only kinematic equation, calculate the following :
1. Speed of train at point B
2. Time taken during the acceleration from B to C
3. Rate of deceleration from C to D
4. Total distance, in metres, travelled from A to D