1. What is your velocity when your feet leave the ground? 2. After your feet leave the ground, what kind of motion do you follow, constant acceleration or constant velocity? State the velocity or acceleration. 3. What is your velocity at your maximum height?
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.
Problem 1: How high can you jump? To model jumping we will split the motion into two parts. For the first part, you crouch and make a displacement up by pushing your feet against the ground. The second part is after your feet leave the ground. For the first part, assume that you create an acceleration of 20.4 m/s 2 while your feet are in contact with the ground and that you make a displacement of 0.2 m.
1. What is your velocity when your feet leave the ground?
2. After your feet leave the ground, what kind of motion do you follow, constant acceleration or constant velocity? State the velocity or acceleration.
3. What is your velocity at your maximum height?
4. Determine how high you go after your feet leave the ground.
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