Driving down the road at a speed of 39.1 m/s, you suddenly notice a fallen tree blocking the road a distance of 93.0 m ahead of you. You step on the brake pedal and decelerate at a constant rate. What must the magnitude of your acceleration be so that you will come to a stop 5.9 m in front of the tree? 8.78 m/s^2 8.22 m/s^2 7.73 m/s^2 17.55 m/s^2
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.
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Driving down the road at a speed of 39.1 m/s, you suddenly notice a fallen tree blocking the road a distance of 93.0 m ahead of you. You step on the brake pedal and decelerate at a constant rate. What must the magnitude of your acceleration be so that you will come to a stop 5.9 m in front of the tree?8.78 m/s^28.22 m/s^27.73 m/s^217.55 m/s^2
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