2. A train travels from A to B, a distance of 20 000m, taking 1000s. The journey has three stages. In the first stage the train starts from rest at A and accelerates uniformly until its speed is Vms. In the second stage the train travels at constant speed Vms¯1 for 600 s. During the third stage of the journey the train decelerates uniformly, coming to rest at B. (i) Sketch the velocity-time graph for the train's journey. (ii) Find the value of V. Given that the acceleration of the train during the first stage of the journey is 0.15ms? , find the distance travelled by the train during the third stage of the journey (iii)
Displacement, Velocity and Acceleration
In classical mechanics, kinematics deals with the motion of a particle. It deals only with the position, velocity, acceleration, and displacement of a particle. It has no concern about the source of motion.
Linear Displacement
The term "displacement" refers to when something shifts away from its original "location," and "linear" refers to a straight line. As a result, “Linear Displacement” can be described as the movement of an object in a straight line along a single axis, for example, from side to side or up and down. Non-contact sensors such as LVDTs and other linear location sensors can calculate linear displacement. Non-contact sensors such as LVDTs and other linear location sensors can calculate linear displacement. Linear displacement is usually measured in millimeters or inches and may be positive or negative.
ANSWER 2- (iii) Given that the acceleration of the train during the first stage of the journey is 0.15ms−2 , find
the distance travelled by the train during the third stage of the journey
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