Projectile Motion Laboratory Flashcards
projectile motion equipment
XplorerGLX
Projectile Launcher
Plastic Balls
Photogate Port
Photogate Head
Photogate Mounting Bracket
Time of Flight Accessory
UniversalTable Clamp
is the horizontal distance, x, between the muzzle ofthe launcher and the place where the ball hits
range
is the initial speed of the ball as it leaves the muzzle
v
is the angle
of inclination above horizontal,
θ
For the case in which the ball hits on a place that is at the same level as the level of the muzzle of the
launcher, the total time of flight of the ball will be ___ the time it takes the ball to reach the peak of its trajectory
twice
.At the peak or at the maximum height, the vertical velocity is ___
zero
vy at ymax
= 0
v0 sinθ – gtmax is equal to
0
total time of flight formula
2tmax = 2vo sinθ/g
range formula
= vo^2sin2θ/g
horizontal distance is computed using the first equation
R1= x = vocosTt
compute for R1 given
vo = 4.32 m/s
t = 0.35
θ = 15
1.46m
compute for R2 given
vo = 4.32 m/s
t = 0.35
θ = 15
0.95m
compute for percentage difference given
R1 = 1.46m
R2 = 0.95m
42.32
percentage difference formula for two ranges
R1 - R2 / R1+R2/2 *100
what angle has the maximum range
45
angles such as those
of 15o and 75o yield the same range
complementary angles
Based on the data collected, the angle of launch starts from 15o and increases to 75o. As we increase the inclination, there is an observed increase in the
time of flight
factors affecting results
Several factors can affect the accuracy and consistency of the results. One example
is air resistance, which is not accounted for in theoretical equations in this activity. Air
resistance can act as a drag force on the projectile, possibly slowing it down and reducing
its range. Its effect depends on the projectile’s shape, size, and velocity. Thus, neglecting
air resistance can lead to discrepancies between the theoretical predictions and actual
experimental data, particularly at higher launch angles where air resistance can be more
noticeable. Additionally, the accuracy of the measurements can also affect results. Small
errors from the said measurement can affect the calculations, leading to deviations in the
results. Lastly, the setup of the experiment including the surface, consistency of
projectile’s release, and precision of the landing location in the time-of-flight accessory
can introduce deviations to the results.
