PHY10L E103
I will not include the term and school year na lang. Remember, guide lang. Edit edit din, you'll never know kung eto din kukunin ng classmate mo
ANALYSIS (E103)
1. From the results of your experiment, how would you compare the range of the projectile launched at 30 to the one launched at 60? Is this consistent with the theory? Defend your answer.
The range launched at both angles has almost no difference. It is consistent with the theory because force acting on y-axis is independent from the force acting on x-axis. From the formula of range itself, range is equal to the squared of the initial velocity multiplied to the sine of twice the angle all over gravity, twice 30 is 60 and twice 60 is 120. Sine those angles will have same result because 30 and 60 are complementary angles.
2. From the results of your experiment, how would you compare the maximum vertical distance reached by the projectile launched at 30 to the one launched at 60? Is this consistent with the theory?
The vertical distance launched at 60 is, somewhat, three times higher than the one launched at 30. The formula of the vertical distance has sin0 which gives higher value for 60 compared to 30. It is still consistent with the theory since we are comparing two different projectiles in different angle, the values will not be the same. The experimental value is quite near with the computed value means that the formula derived from the theory is satisfied.
3. List down the possible sources of error in this experiment.
- Air Resistance
- Precision of the angle of the projectile launcher
- Stability of the launcher and the table
- Human factors
CONCLUSION
1. Are the objectives of the experiment met? Explain.
The objective of the experiment was met. I was able to analyze the motion of the projectile. Projectile motion is two dimensional which can be represented as x and y axis that are independent from each other because the components are perpendicular. The parabolic curve path of the motion is trajectory wherein gravity would be the only one involved on the motion of the projectile. The motion along the x-axis is consistent if there would be no force acting in it.
I was able to compare the ranges of the projectiles launched at different angles. From zero to 45, range is increasing and from 45 to 90, range is increasing. Therefore, I conclude that complementary angles will have the same range for the same initial speed and the furthest range would have the angle of 45. The higher the angle , the larger the error could be because it has longer airtime and trajectory which will have longer interaction with air resistance and other factors that may cause errors.
2. Discuss the practical application of the concept/s learned from the experiment.
One example of the practical application of Projectile motion is the game baseball. The pitcher winds up and throws. The ball lands in the center of the catcher's mitt. But in what direction did the pitcher throw the ball to get it there? As soon as the ball leaves the pitcher's hand, the gravitational force acts on it, accelerating it toward Earth. The ball is aprojectile; the path it follows is its trajectory. In this section we will study the motion of projectiles and other objects that move in two dimensions according to Newton's Laws.
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