A particle moves in a straight line. It starts from rest at a position x =+10 meters at time t = 0 seconds and accelerates uniformly at the rate of -2 m/s in the negative direction. At time t = 4 seconds, the particle starts traveling with a constant speed up to t = 7 seconds. What is its position (in m) at t = 7 seconds? a. -30 b. - 40 c. - 8 d.-6 e. - 59
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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