all is dropped from rest from the top of a building. Two motion detectors which are positioned outside of two different windows, one above the other, record the velocities of -15.5 m/s and -17.2 m/s as the ball goes past them. (no air resistance) a. How far apart are the motion sensors mounted?
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 rest from the top of a building. Two motion detectors which are
positioned outside of two different windows, one above the other, record the velocities
of -15.5 m/s and -17.2 m/s as the ball goes past them. (no air resistance)
a. How far apart are the motion sensors mounted?
b. How far from the top motion sensor is the top of the building where the ball was
released?
c. If the second motion sensor can also measure the time it takes for the ball to hit
the ground after passing it as 3.50 seconds, how tall is the building?
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