Lectures on Physics has been derived from Benjamin Crowell's Light and Matter series of free introductory textbooks on physics. See the editorial for more information.... 
Home Newtonian Physics Acceleration and Free Fall Examples Numerical calculation of a negative acceleration  
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Numerical calculation of a negative accelerationIn figure i, what happens if you calculate the acceleration between t = 1.0 and 1.5 s? Reading from the graph, it looks like the velocity is about 1 m/s at t = 1.0 s, and around 6 m/s at t = 1.5 s. The acceleration, figured between these two points, is
Even though the ball is speeding up, it has a negative acceleration.


Home Newtonian Physics Acceleration and Free Fall Examples Numerical calculation of a negative acceleration 