A javelin thrower standing at rest holds the center of the javelin behind her head, then accelerates it through a distance of 70 cmcm as she throws. She releases the javelin 2.0 mm above the ground traveling at an angle of 30 ∘∘ above the horizontal. In this throw, the javelin hits the ground 62 mm away. What was the acceleration of the javelin during the throw? Assume that it has a constant 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 javelin thrower standing at rest holds the center of the javelin behind her head, then accelerates it through a distance of 70 cmcm as she throws. She releases the javelin 2.0 mm above the ground traveling at an angle of 30 ∘∘ above the horizontal. In this throw, the javelin hits the ground 62 mm away. What was the acceleration of the javelin during the throw? Assume that it has a constant acceleration.
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