In a collision, an automobile initially traveling at 50 km/h decelerates at a constant rate of 200 m/s2. A passenger not wearing a seatbelt crashes against the dashboard. Before the collision, the distance between the passenger and the dashboard was 0.60 m. With what speed relative to the automobile does the passenger crash into the dashboard? Assume that the passenger has no deceleration before contact with the dashboard.
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.
In a collision, an automobile initially traveling at 50 km/h decelerates at a constant rate of 200 m/s2. A passenger not wearing a seatbelt crashes against the dashboard. Before the collision, the distance between the passenger and the dashboard was 0.60 m. With what speed relative to the automobile does the passenger crash into the dashboard? Assume that the passenger has no deceleration before contact with the dashboard.
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