5: Freight trains can produce only relatively small accelerations and decelerations. Part (a) What is the final velocity, in meters per second, of a freight train that accelerates at a rate of 0.055 m/s2 for 7.75 min, starting with an initial velocity of 4.6 m/s? Part (b) If the train can slow down at a rate of 0.525 m/s2, how long, in seconds, does it take to come to a stop from this velocity? Part (c) How far, in meters, does the train travel during the process described in part (a)? Part (d) How far, in meters, does the train travel during the process described in part (b)?
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.
5: Freight trains can produce only relatively small accelerations and decelerations.
Part (a) What is the final velocity, in meters per second, of a freight train that accelerates at a rate of 0.055 m/s2 for 7.75 min, starting with an initial velocity of 4.6 m/s?
Part (b) If the train can slow down at a rate of 0.525 m/s2, how long, in seconds, does it take to come to a stop from this velocity?
Part (c) How far, in meters, does the train travel during the process described in part (a)?
Part (d) How far, in meters, does the train travel during the process described in part (b)?
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