An unwary football player collides head-on with a padded goalpost while running at 7.2 m/s and comes to a full stop after compressing the padding and his body by 0.28 m. Take the direction of the player’s initial velocity as positive Assuming constant acceleration, calculate his acceleration during the collision, in meters per second squared. How long does the collision last in seconds?
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.
An unwary football player collides head-on with a padded goalpost while running at 7.2 m/s and comes to a full stop after compressing the padding and his body by 0.28 m. Take the direction of the player’s initial velocity as positive
Assuming constant acceleration, calculate his acceleration during the collision, in meters per second squared.
How long does the collision last in seconds?
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