Pronunciation: /prəˈdʒɛk.taɪl ˈmoʊ.ʃən/ Explain
is the vertical motion of an object in a gravitational field given an initial
for projectile motion is:
due to gravity, v0
the initial velocity
Since down is taken to be negative, acceleration due to gravity is a negative
Click on the blue points on the sliders and drag to change the figure.|
What initial angle would make the projectile go only up or down?
|Manipulative 1 - Projectile Motion Created with GeoGebra.|
- Jeff is standing on top of 20 foot tower. He throws
a stick down at an initial velocity of -10 ft/s. Use
-32 ft/s2 for the acceleration due to gravity.
What is the equation for the vertical height of the stick? At what time does the stick
reach the ground?
|1||Identify the values of the constants.|
|2||Plug the constants into the equation. Simplify the equation.|
|3||Set the height to zero.|
|4||Apply the quadratic formula.|
|5||Since a negative solution does not make sense in this problem, the negative solution is extraneous solution. Discard the extraneous solution.|
- McAdams, David E.. All Math Words Dictionary, projectile motion. 2nd Classroom edition 20150108-4799968. pg 145. Life is a Story Problem LLC. January 8, 2015. Buy the book
Cite this article as:
McAdams, David E. Projectile Motion. 4/28/2019. All Math Words Encyclopedia. Life is a Story Problem LLC. http://www.allmathwords.org/en/p/projectilemotion.html.
4/28/2019: Changed equations and expressions to new format. (McAdams, David E.)
12/21/2018: Reviewed and corrected IPA pronunication. (McAdams, David E.)
12/1/2018: Removed broken links, updated license, implemented new markup, updated geogebra app. (McAdams, David E.)
8/7/2018: Changed vocabulary links to WORDLINK format. (McAdams, David E.)
1/10/2009: Initial version. (McAdams, David E.)