### Author Topic: EJS version of Vector addition (sum of two vectors)  (Read 10467 times)

#### Fu-Kwun Hwang

• Hero Member
•     • • Posts: 3062 ##### EJS version of Vector addition (sum of two vectors)
« on: October 11, 2009, 03:59:59 pm »
This is EJS version of vector addition.

The applet shows how vector \$vec{C}=vec{A}+vec{B}\$ was calculated.
1. Calculate X,Y components of vector \$vec{A},vec{B}\$,
\$vec{C}_x=vec{A}_x+vec{B}_x\$ and \$vec{C}_y=vec{A}_y+vec{B}_y\$
2. If you un-check x-y mode:
The sum is equal to sum of parallel components of \$vec{A},vec{B}\$ in the direction of \$vec{C}\$,
\$vec{C}=vec{A}_p +vec{B}_p\$
and the normal component of \$vec{A},vec{B}\$ always cancel out with each other. i.e.
\$vec{A}_n+vec{B}_n=0\$ or \$vec{A}_n= -vec{B}_n\$

You can select to operate in C=A+B , A=C-B or B=C-A mode.

Full screen applet or Problem viewing java?Add http://www.phy.ntnu.edu.tw/ to exception site list
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Let's work together. We can help more users understand physics conceptually and enjoy the fun of learning physics!  #### mostafaxx

• Newbie
• • Posts: 1 ##### Re: EJS version of Vector addition (sum of two vectors)
« Reply #1 on: October 28, 2021, 02:01:56 am »
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