A ball is dropped from a height of 3 m and rebounds from the floor to a height of 2 m. a) What is the velocity of the ball just as it reaches the floor? b) What is the velocity just as it leaves the floor? c) If it is in contact with the floor for 0.02 s, what are the magnitude and direction of its average acceleration during the interval?
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.
A ball is dropped from a height of 3 m and rebounds from the floor to a height of 2 m.
a) What is the velocity of the ball just as it reaches the floor?
b) What is the velocity just as it leaves the floor?
c) If it is in contact with the floor for 0.02 s, what are the magnitude and direction of its
average acceleration during the interval?
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