What is true about the kinematics of a particle: 1. If the velocity of a particle is zero, then its acceleration must be zero. 2. If the position of a particle is zero, the velocity must zero. 3. The velocity of a particle is always positive. 4. The displacment of a particle over a given time interval is equal to the area under the velocity-time graph during that time.
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.
What is true about the
1. If the velocity of a particle is zero, then its acceleration must be zero.
2. If the position of a particle is zero, the velocity must zero.
3. The velocity of a particle is always positive.
4. The displacment of a particle over a given time interval is equal to the area under the velocity-time graph during that time.
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