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Unformatted text preview: Lab 4: Projectile Motion \ Lab Report (100 pts) Name: 4”—
PHYS 1114 2614 ection: Day and Time: ‘7 5"?" ’ s ' 4 I.” .
Station Check: ﬁﬁézsis [\“Zéféo’ FIRE 0N MEDIUM RANGE ONLY 39 Lab 5: Projectile Motion Exercises and Questions 1. Insert your data into the provided Excel Spreadsheet. Shovif'yOur TA”your“"”ﬁphs. Once
approved, print the graphs for both you and your lab partner. Use a proper slope technique to ﬁne the slope of the line of best ﬁt. Show the slope calculation on the graph. (10 pts) The position vs. time graphs are graphical representations of the observed motion of the
plastic ball in air. Analyze the behavior of the slope of the position vs. time graphs and write
descriptions of the motion and changes in the motion represented by the graphs. a. The descriptions should emphasize the overall features of the position vs. time
graphs, not small variations in the graphs. b. The descriptions should include the direction of motion; Whether the ball moves in a
particular direction with (nearly) constant velocity and no acceleration; or Whether the
motion of the ball in a particular direction is (signiﬁcantly) accelerated and, if so, how
does the ball accelerate (e.g., speeds up, slows down, and/or changes direction). The grade assigned to the graphical analysis of the horizontal and vertical motion of the
plastic ball in air is based on the thoroughness of the analysis. The grade: assigned to the
descriptions of the motion is based on the completeness of the descriptions and the use of
kinematic concepts and vocabulary. Analysis of the Slope of the Horizontal Position vs. Time Graph (2 pts) o \n C) \I, ‘, z’m ' g“;
I r a w 735197;; :14: lefﬁgr, ' ‘30 HS“? ﬁrst“; / Description of the Horizontal Motion (3 pts) 40 Lab 4: Projectile Motion Analysis of the Slope of the Vertical Position vs. Time Graph [HINT: break the graph into
different parts in order to make it easier to analyze] (5 pts) "WW '1? 1 “A: a r; $\Q@% la» 7%??? \ 3""7‘5'w5? If; it??? in {‘1‘» (x. C) ’ ,,‘ g?“ ~; "'7" [Wk 1 {1% " a W “I m ‘ 59; "i‘ sitgﬁﬁfﬁx ’j Description of the Vertical Motion (7 pts)
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“to e me 1—‘~ 9’31"“ i 7‘ a " i? "1‘ ‘é / 4. Based solely on the analysis of the horizontal position vs. time data and graph in Question 3,
What is the magnitude and direction of the horizontal velocity of the ball? (5 pts) 3; V5 W5 ‘ ,. . ‘ a; ‘. ‘3 ~.T
+3: 6 gin gay: my me. @3315 i mg, '54 gag; om 5. Use a proper slope technique to ﬁne the slope of the line of 'best ﬁt. Show the slope
calculation on the graph. (10 pts) 41 Lab 5: Projectile Motion 6. The vertical velocity vs. time graph is a graphical representation of the observed vertical
motion of the plastic ball in air. Analyze the behavior of the velocity vs. time graph and the
behavior of the slope of the graph. Describe the motion of a particle represented by the
velocity vs. time graph and any changes in the motion. a. The description should emphasize the overall features of the velocity vs. time graph,
not small variations in the plotted data. b. The description should include the direction of motion; whether the particle moves
with (nearly) constant vertical velocity (constant speed and no change in direction)
and no acceleration or whether the particle accelerates in some manner (increasing
speed, decreasing speed, or changing direction) and, if so, Whether the acceleration is
(nearly) constant (e. g., speed changes at a constant rate). The grade assigned to the graphical analysis of the vertical motion of the plastic ball in air is
based on the thoroughness of the analysis. The grade assigned to the descriptions of the
motion is based on the completeness of the descriptions and the use of kinematic concepts
and vocabulary. Analysis of the Behavior of the Vertical Velocity vs. Time Graph [HIN T: break the graph
into different parts in order to make it easier to analyze] (7 pts) 1 {1% $995“; i“, 12;" e 5"}. . a. “ , L L x , ‘» < r 4 _ V 7 ~
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what is the magnitude and direction of the acceleration of the ball? (4 st/n WNW»  u c, ‘ (’3 w); M r r» AH meoelﬁwx M: ‘: I .n ‘g M? w ' ' i I» es 8. How does the measured acceleration of the ball in Question 9 compare in magnitude (percent error) and direction to the theoretical acceleration due to the force of grav’ alone, a
constant 9.8 m/sz, downward? (4 pts) 9. What is the initial velocity (magnitude and direction of the ball? Show all work. (10 pts) Mr.“—
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This note was uploaded on 01/10/2012 for the course PHYS 2014 taught by Professor Nandi during the Spring '08 term at Oklahoma State.
 Spring '08
 Nandi
 Projectile Motion

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