FIRE AWAY!!
In class- At the start of class Coats-Haan checked our detailed analysis packets for completion. We were given the key to correct any mistakes. The rest of the class period was spent doing the dart gun lab (page 51 of our lab manual). This lab demonstrates horizontal range at different angles. We were supposed to find out whether or not the equations for projectile motion predict the actual distance covered by the dart. Oh and if you were wondering, my group found out, after several failed attempts, that the dart doesn't actually suction on to the wall.
Homework -page 82 #14-23 (more projectile motion practice)
-lab report (due Tuesday)
Question of the day-Use the range equation to explain mathematically, why complementary launch angles produce the same horizontal range.
Answer of the day- The range equation is Range = velocity squared*sin2theta/gravity. While I was experimenting with this equation I found out that when solving for complementary angles the result is the same because the sin2theta of any two complementary angles gives the same result. For example, sin2(20 degrees) and sin2(70 degrees) both equal .6428. Thus the results are the same because the rest of the variables in the equaiton are the same as well.
Homework -page 82 #14-23 (more projectile motion practice)
-lab report (due Tuesday)
Question of the day-Use the range equation to explain mathematically, why complementary launch angles produce the same horizontal range.
Answer of the day- The range equation is Range = velocity squared*sin2theta/gravity. While I was experimenting with this equation I found out that when solving for complementary angles the result is the same because the sin2theta of any two complementary angles gives the same result. For example, sin2(20 degrees) and sin2(70 degrees) both equal .6428. Thus the results are the same because the rest of the variables in the equaiton are the same as well.
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