Homework: A ball thrown up from the ground reaches a maximum height of 20m. Find (a)its initial velocity (b)the time taken to reach the highest point (c)its velocity just before hitting the ground (d)its displacement between 0.5 and 2.5sec (e)the time at which it is 15m above the ground Ans. (a) + 19.8 m/sec (b) t=2.02 sec (c) v = vo; -Vo (d) Ay = +10.2m (e) t=1.01 sec, 3.03 sec
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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