A steel ball is dropped onto a hard floor from a height of 1.50 m and rebounds to a height of 1.45 m. Calculate its velocity just before it strikes the floor. Answer in 2 decimal places. Calculate its velocity just after it leaves the floor on its way back up. Answer in 2 decimal places. Calculate its acceleration during contact with the floor if that contact lasts 8.00 × 10−5s.
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 steel ball is dropped onto a hard floor from a height of 1.50 m and rebounds to a height of 1.45 m.
- Calculate its velocity just before it strikes the floor. Answer in 2 decimal places.
- Calculate its velocity just after it leaves the floor on its way back up. Answer in 2 decimal places.
- Calculate its acceleration during contact with the floor if that contact lasts 8.00 × 10−5s.
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