http://www.ck12.org Chapter 4. Motion and Forces
MEDIA
Click image to the left for use the URL below.
URL: http://www.ck12.org/flx/render/embeddedobject/82415You can compare the acceleration due to gravity on Earth, the moon, and Mars with the interactive animation called
“Freefall” at this URL:
http://jersey.uoregon.edu/vlab/
FIGURE 4.31
Q: In this diagram, the boy drops the object at time t = 0 s. By t = 1 s, the object is falling at a velocity of 9.8 m/s.
What is its velocity by t = 5 s? What will its velocity be at t = 6 s if it keeps falling?
A: Its velocity at t = 5 s is 49.0 m/s, and at t = 6 s, it will be 58.8 m/s (49.0 m/s + 9.8 m/s).