The driver of a car traveling along a straight road with a speed of 18 m/s observes a sign that gives the speed limit as 25 m/s. The sign is 85 m ahead at the instant the driver begins to accelerate the car. Determine the magnitude of the constant acceleration that will cause the car to pass the sign at the posted speed limit.
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.
The driver of a car traveling along a straight road with a speed of 18 m/s observes a sign that gives the speed limit as 25 m/s. The sign is 85 m ahead at the instant the driver begins to accelerate the car. Determine the magnitude of the constant acceleration that will cause the car to pass the sign at the posted speed limit.
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