A ball rolls off a table and falls 0.75 m to thefloor, landing with a speed of 4.0 m>s. (a) What is the accelerationof the ball just before it strikes the ground? (b) What was the initialspeed of the ball? (c) What initial speed must the ball have if it is toland with a speed of 5.0 m>s?
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 rolls off a table and falls 0.75 m to the
floor, landing with a speed of 4.0 m>s. (a) What is the acceleration
of the ball just before it strikes the ground? (b) What was the initial
speed of the ball? (c) What initial speed must the ball have if it is to
land with a speed of 5.0 m>s?
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