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M2 Physics - Data Sheets and Conceptual-with
100% Complete Solutions |Rated A+
Newton's Laws of Motion (M2) - Data Sheets
Before answering questions listed below read the lab description
and instructions written in the file “M2 – Description”. Make sure to
write answers in the highlighted lines.
Activity 1: Constant Acceleration
(1.5 p.)
Before you start analyzing position, velocity and acceleration data, watch
the short movie M2 Act1.MOV (available in the “Lab M2” module on
Brightspace) showing motion of the cart.
Acceleration values
( m/s
2
)
Deviations from the
average acceleration:
Da = a − a AV
Squared deviations
from the average
acceleration:
( Da )
2
Avera
a
AV = - 0.341 Sum = 0.
Find the selected data points on the printout and clearly mark these
points with a pen (for example, circle them).
Average value of the acceleration:
a AV = - 0.341 ( m/s
2
) (as average
of five instantaneous accelerations).
Calculate the standard deviation of acceleration s a using the formula
given in the Error Analysis section of the lab manual. The final result of the
acceleration measurements (1-6) should be written as: a = a AV
s a {e.g., a = 0.43 ± 0.12 m/sec
2
}
Show your work below:
Standard_Dev = sqrt(Sum(a-av)^2/N)
= sqrt(0.000136/5)
s a = 0.005215 ( m/s
2
)
Therefore, the result for average acceleration is:
a = - 0.34 ± 0.0052 ( m/s
2
)
Calculate the theoretical value of acceleration (c.f., Figure 3). Show your
work! Measure the distance between the two outside legs supporting the
track (use the ruler on the track to measure this value).
l = 1.435 ( m )
Activity 2: Newton's Second Law
(1.5 p.)
Before you start analyzing position, velocity and acceleration data, watch
the short movie M2 Act2.MOV (available in the “Lab M2” module on
Brightspace) showing motion of the cart.
Mass of the cart m 1
= 0.5594 ( kg )
Mass of the hanging object (including hanger) m 2 = 30.0 ( g ) =
0.0300 ( kg )
Weight of the hanging object (including hanger) = 0.2943( N )
m 2
g
Acceleration values
( m/s
2
)
Deviations from the
average acceleration:
Da = a − a AV
Squared deviations
from the average
acceleration:
( Da )
2
Averag
a AV = 0.43422 SUM = 0.
Find the selected data points on the printout and clearly mark these
points with a pen (for example, circle them).
Average value of the acceleration:
a AV = 0.43422 ( m/s
2
) (as average
of five instantaneous accelerations).
Calculate the standard deviation of acceleration s a using the formula
given in the Error Analysis section of the lab manual. The final result of the
acceleration measurements (1-6) should be written as: a = a AV
s a {e.g., a = 0.43 ± 0.12 m/sec
2
}
Show your work below:
Standard_Dev = sqrt(SUM(a – av)^2/N)
= sqrt(0.000076388/5)
s a = 0.003908 ( m/s
2
)
Therefore, the result for average acceleration is:
a = 0.43 ± 0.0039 ( m/s
2
)
Calculate the theoretical value of acceleration.
a theor.
= 0.49932 ( m/s
2
)
Calculate the absolute difference between experimental value and the
theoretical value of acceleration. Show your work.
∆a = |0.43422-0.49932|
Keep the probes hooked together. Try to pull only one probe and do not
pull the other one. Can you get a zero-force recorded by one probe and
significantly non-zero force measured by the other probe?
Can you really pull only one probe without pulling the other? ( Yes or No )
No
Which physics law describes this situation? Newton’s Third Law of motion
B. Attach probe “B” to the lab bench using the clamp and hold probe “A” in
your hand.
Are the measured forces still nearly equal and opposite?
(Yes or No) Yes
Which physics law describes this situation? Newton’s Third Law of motion
Complete all calculations and write results using this file. Write the
answers to the Conceptual Questions on the next pages. Save the
edited file under a new name showing your name, e.g. “M2 – John
Smith”. This will be your lab report. Next, submit the file “M2 –
John Smith” on Brightspace for grading.
the weight so the book exerts a smaller force on the floor which is
measured by the scale.
Fy = N – m1*g = 0
Fy = T - m2*g = 0
T = m2*g
k m1g = m2*g
k = (m2g)/(m1g)
k = (m2)/(m1)
