Solved: QUESTION 8 [12 marks] The velocity-time graph below represents the jou

Question

QUESTION 8 [12 marks] The velocity-time graph below represents the journey of a train P travelling along a straight horizontal track between two stations that are 4.5 km apart. v (ms-¹) 75 T Train P leaves the first station, accelerating uniformly from rest for 750 m until it reaches a speed of 75 m/s. The train then maintains this speed for T seconds before decelerating uniformly at 2.5 m/s², coming to rest at the next station. a. Find the acceleration of train P during the first 750 m of its journey. b. Find the value of T c. Sketch the displacement-time graph A second train Q completed the same journey in the same total time. The train leaves the first station, accelerating uniformly from rest until it reaches a speed of V m/s and then immediately decelerates uniformly until it comes to rest at the next station. d. Sketch a velocity-time graph for the journey of train Q. e. Find the value of the speed, V