A ball is thrown upward from the 2nd floor with an initial velocity of 20 m/s. Using the approximate value of g = -10 m/s2, 8.1 What is the velocity of the ball 1.0 second after it is released? Up or down? 8.2 How high is the ball? Is it above or below the 2nd floor? 8.3 What is the acceleration at this instant? Up or down?
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 thrown upward from the 2nd floor with an initial velocity of 20 m/s. Using the approximate value of g = -10 m/s2,
8.1 What is the velocity of the ball 1.0 second after it is released?
Up or down?
8.2 How high is the ball? Is it above or below the 2nd floor?
8.3 What is the acceleration at this instant? Up or down? 8.4 What is the velocity of the ball 2.0 seconds after it is released? Up or down?
8.5 How high is the ball at this instant? Is it above or below the 2nd floor?
8.6. What is the acceleration at this instant? Up or down?
8.7 What is the velocity of the ball 4.0 seconds after it is released? Up or down?
8.8 How high is the ball at this instant? Is it above or below the 2nd floor?
8.9 What is the acceleration at this instant? Up or down?
8.10 What is the displacement of the ball 6.0 seconds after it is released?
8.11 What is the total distance traveled by the ball 6.0 seconds after it is released?
8.12 Is the ball above or below the 2nd floor at 6 seconds
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