A football quarterback runs 11.5 m straight down the playing field in 2.42 s. He is then hit and pushed 2.75 Im straight backward in 1.64 s. He breaks the tackle and runs straight forward another 23.1 m in 5.54 s. We assume the forward direction to be positive, and the backward position to be negative. Calculate his average velocity in m/s a. for each of the three intervals; b. for the entire motion. Hint
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 football quarterback runs 11.5 m straight down the playing field in 2.42 s. He is then hit and pushed 2.75
m straight backward in 1.64 s. He breaks the tackle and runs straight forward another 23.1 m in 5.54 s.
We assume the forward direction to be positive, and the backward position to be negative.
Calculate his average velocity in m/s
a. for each of the three intervals;
b. for the entire motion.
Hint
a. His average velocities for each of the three intervals are
o first interval v₁ =
m/s
Enter an integer or decimal number [more..]
m/s
o second interval v₂ =
m/s
othird interval v3 =
b. His average velocity for the entire motion is v =
m/s](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F77ff0dc1-7282-4fa0-94cd-a91857c24dd6%2F7bdbdbd6-7a2e-4e3a-878a-d58f91207ed6%2Ffqm50k4_processed.jpeg&w=3840&q=75)
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