Questions, Part a, Loss of ke part a part b – PASCO ME-6569 RMS_IDS KIT User Manual
Page 31: Part b
012–06408A
RMS/IDS Kit
27
0.51
0.40
0.46
0
0.96
0.19
0.20
0.20
0.18
0.19
Questions:
1.
Total momentum is unchanged after the collision, but the total KE drops significantly after
the collision.
2.
Friction gradually reduced both the total momentum and total KE until both reach zero.
Friction reduced the momentum and KE more rapidly in the system with more mass (Part
B).
3.
Other variables include vibration in the system and a small amount of elasticity in the
collision.
m
1
v
1
m
2
v
2
m
after
v
after
m
1
v
1
+ m
2
v
2
m
after
v
after
Part A
0.51
0.37
0.96
0
1.5
0.12
0.19
0.19
0.18
0.18
½m
1
v
1
2
+½m
2
v
2
2
½m
after
v
after
2
loss of KE
Part A
Part B
Table 3.1
(N s)
(N s)
%
(kg)
(m/s)
(kg) (m/s)
(kg)
(m/s)
(kg ms/)
(kg m/s)
0.041.
0.041
0.017
0.018
59
0.035
0.035
0.011
0.011
69
measured
Table 3.2
calculated
calculated
measured
calculated
measured
calculated
measured
calculated
measured
calculated
measured
calculated
measured
calculated
measured
Part B