A skydiver is falling straight down, along the negative y direction. During the initial part of the fall, her speed increases from 16 m/s to 28 m/s in 1.5 s, as shown in Figure 7a. Later, her parachute opens, and her speed decreases from 48 m/s to 26 m/s in 11s, as shown in Figure 7b. In both instances, determine the magnitude and direction of her average acceleration
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 skydiver is falling straight down, along the negative y direction. During the
initial part of the fall, her speed increases from 16 m/s to 28 m/s in 1.5 s, as shown
in Figure 7a. Later, her parachute opens, and her speed decreases from 48 m/s to
26 m/s in 11s, as shown in Figure 7b. In both instances, determine the magnitude
and direction of her average acceleration
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