Tuesday, May 25, 2010
Monday, May 24, 2010
Tuesday, May 11, 2010
Sunday, May 9, 2010
Wednesday, April 28, 2010
Think critically
Calculate
What is your displacement if you walk 100 m north ,20 m east, 30 m south, 50 m west, and then 70 m south?
What is your displacement if you walk 100 m north ,20 m east, 30 m south, 50 m west, and then 70 m south?
Tuesday, April 27, 2010
Wednesday, April 21, 2010
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