S) 20 pts. A freight train that is 700-meters from engine to caboose enters a crossing...

Question:

S) 20 pts. A freight train that is 700-meters from engine to caboose enters a crossing at a speed of 5 km/hr. The local requirements demand that freight trains do not block traffic for more than 4 minutes If the train accelerated at a constant rate: a) What should be the acceleration so that the caboose passes the crossing just 4 minutes after the engine? b) What will be the speed of the train when the caboose passes the crossing? 1 km/he 0.278 m/s