3-31-09

On the day of March 31st, 2009, Mr. Manning started off the day by going over worksheets pages 10 & 11. One student had a question on question 2d, the student was wondering how you would find the degree for the vector subtraction. Mr. Manning explained you could use either the SIN ¯ ó, COS¯ ó , or the TAN¯ ó function to find the answer. Then Mr. Manning hammered the class with a 3 part graded daily question. It was posed as follows:
 * A cargo plane is flying horizontally at an altitude of 1200m with a speed of 150m/s when a battle tank falls out of the rear loading ramp.**


 * 1.  ****How long does it take the tank to hit the ground? **15.6s


 * 2.  ****How far horizontally is the tank from where it fell off when it hits the ground? **2340m


 * 3.  ****How far (vertically) is the tank from the aircraft when the tank hits the ground, assuming that the plane continues to fly with constant velocity? **1200m

Mr. Manning explained that for the first and second questions the equation V x =1/2at ô +Vi*t but the second question could also use the equation V= V x/t. He also said that for #3 the answer was simply the given altitude.

He then started to go over the Woolly Mammoth problems on the packet given out at the begging of the day. The class did problems 1a, 1b, and 1c as a class. After that he then sent the class of on their own to finish the packet for homework.