Which of the following describes an object with a negative acceleration and a positive velocity? a. an object that is speeding up while travelling in a positive direction b. an object that is slowing down while travelling in a positive direction c. an object that is slowing down while travelling in a negative direction d. an object that is speeding up while travelling in a negative direction
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.
Which of the following describes an object with a negative acceleration and a positive velocity?
Tom hits a tennis ball straight up with a speed of 10.00 m/s. What is the velocity ( speed and direction) of the tennis ball 1.50 s later.
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