A football punter kicks the ball horizontally off a 51m high cliff into a pool of water. The player heard the sound of the splash 3.4s later. Assume speed of sound to be 343m/s. 1. What is the actual time the ball hits the water? 2. Find the horizontal distance that the football travels. 3. What is the initial speed of the football.
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 punter kicks the ball horizontally off a 51m high cliff into a pool of water. The player heard the sound of the splash 3.4s later. Assume speed of sound to be 343m/s.
1. What is the actual time the ball hits the water?
2. Find the horizontal distance that the football travels.
3. What is the initial speed of the football.
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