Projectile Motion Laboratory

Question 1

projectile motion equipment

Answer 1

XplorerGLX
Projectile Launcher
Plastic Balls
Photogate Port
Photogate Head
Photogate Mounting Bracket
Time of Flight Accessory
UniversalTable Clamp

Question 2

is the horizontal distance, x, between the muzzle ofthe launcher and the place where the ball hits

Answer 2

range

Question 3

is the initial speed of the ball as it leaves the muzzle

Answer 3

v

Question 4

is the angle
of inclination above horizontal,

Answer 4

θ

Question 5

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

Answer 5

twice

Question 6

.At the peak or at the maximum height, the vertical velocity is ___

Answer 6

zero

Question 7

vy at ymax

Answer 7

= 0

Question 8

v0 sinθ – gtmax is equal to

Answer 8

0

Question 9

total time of flight formula

Answer 9

2tmax = 2vo sinθ/g

Question 10

range formula

Answer 10

= vo^2sin2θ/g

Question 11

horizontal distance is computed using the first equation

Answer 11

R1= x = vocosTt

Question 12

compute for R1 given

vo = 4.32 m/s
t = 0.35
θ = 15

Answer 12

1.46m

Question 13

compute for R2 given

vo = 4.32 m/s
t = 0.35
θ = 15

Answer 13

0.95m

Question 14

compute for percentage difference given

R1 = 1.46m
R2 = 0.95m

Answer 14

42.32

Question 15

percentage difference formula for two ranges

Answer 15

R1 - R2 / R1+R2/2 *100

Question 16

what angle has the maximum range

Answer 16

45

Question 17

angles such as those
of 15o and 75o yield the same range

Answer 17

complementary angles

Question 18

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

Answer 18

time of flight

Question 19

factors affecting results

Answer 19

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.