Kinematics Equations Video Lessons

Concept

# Problem: A baseball pitcher throws a baseball with a speed of 43 m/s. Estimate the average acceleration of the ball during the throwing motion. In throwing the baseball, the pitcher accelerates it through a displacement of about 3.5m , from behind the body to the point where it is released (Fig. 2-37).

###### FREE Expert Solution

Consider the kinematic equation:

Solving for a:

$\mathbit{a}\mathbf{=}\frac{{{\mathbf{v}}_{\mathbf{f}}}^{\mathbf{2}}\mathbf{-}{{\mathbf{v}}_{\mathbf{0}}}^{\mathbf{2}}}{\mathbf{2}\mathbf{∆}\mathbf{x}}$

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###### Problem Details

A baseball pitcher throws a baseball with a speed of 43 m/s. Estimate the average acceleration of the ball during the throwing motion. In throwing the baseball, the pitcher accelerates it through a displacement of about 3.5m , from behind the body to the point where it is released (Fig. 2-37).