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Misc => Physics Questions => Topic started by: Fu-Kwun Hwang on October 02, 2009, 10:49:08 pm



Title: Initial velocity for two projectiles
Post by: Fu-Kwun Hwang on October 02, 2009, 10:49:08 pm
The following picture shows trajectory for two projectiles.
(http://www.phy.ntnu.edu.tw/ntnujava/index.php?action=dlattach;topic=1232.0;attach=1387;image)
If Vx, Vy and Vx,Vy are velocity for two projectiles.
Which of the following one is correct?
A. Vx=2Vx, Vy=2Vy
B. Vx=Vx, Vy=2Vy
C. Vx=$\sqrt{2}$Vx, Vy=$\sqrt{2}$Vy
D. Vx=Vx, Vy=$\sqrt{2}$Vy