Summary PHY 150 M7 Momentum Lab Report.docx

Momentum




Activity 1: Elastic Collision with Equal Masses Data Table 1

Table 1A. Cart A before collision.
Cart A mass, Distance, d Time, t (s) Average Velocity =
m (kg) (m) time, t (s) d/t (m/s) vA
.0683 .5 Trial 1: .5 .473 1.057
Trial 2: .48
Trial 3: .44

Table 1B. Cart A after collision.
Cart A mass, Distance, d Time, t (s) Average Velocity =
m (kg) (m) time, t (s) d/t (m/s) vA’
.0683 .3 Trial 1: .27 .263 1.141
Trial 2: .26
Trial 3: .26

Table 1C. Cart B after collision.
Cart B mass, Distance, d Time, t (s) Average Velocity =
m (kg) (m) time, t (s) d/t (m/s) vB’
.0716 .5 Trial 1: .49 .48 1.042
Trial 2: .49
Trial 3: .46


Calculations for Activity 1. Elastic Collision with Equal Masses
Apply the law of conservation of momentum to the two-cart system by calculating
the momentum before and after the collision.

Helpful equations:
Momentum before the collision = 𝑚𝐴𝒗𝐴 + 𝑚𝐵𝒗𝐵
Momentum after the collision = 𝑚𝐴𝒗𝐴′ + 𝑚𝐵𝒗𝐵′

𝑚𝐴𝒗𝐴 + 𝑚𝐵𝒗𝐵 = 𝑚𝐴𝒗𝐴′ + 𝑚𝐵𝒗𝐵′

first value−second value

|
Percent difference=
|
first value + second value
2
x 100 %