19. Sara's reaction time is 0.7 s. If she is driving 108 km/h, how far would her BEST completes the statement or answers the question. Place your answer in the For questions 19 and 20, read each question carefully. Decide which of the choices blank space given. vehicle travel before hitting the brakes? A. 18 m В. 19 m С. 20 m D. 21 m 20. When speed doubles, braking distance approximately increases A. 2 times B. 3 times C. 4 times D. 5 times
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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