Question

Table 3 Elastic Collisions: Total Momentum and Kinetic Energy Pi total Prtotal % difference KEi KEf % difference Trial 1 Trial 2 Trial 3 Trial 4 Part B. INELASTIC COLLISIONS Now let us check what happens when the collision is inelastic. We will repeat the collision from Trial 4 above (stationary target, different masses) and see what happens when the elasticity (slider bar) is set first to 50% and then to 0% (completely inelastic) 1. Fill in Table 4 using the online animation. Adjust the elasticity slider bar to set the elasticity. Table 4: Inelastic Collisions m1 Vli pli m2 V2i p2i V1f p1f V2f p2f Results Elasticity (kg) (m/s) (kg\cdot m/s) (kg) (m/s) (kg\cdot m/s) (m/s) (kg\cdot m/s) (m/s) (kg\cdot m/s) Trial 1 50% 2.0 1.5 1.0 0.0 Trial 2 0% 2.0 1.5 1.0 0.0 2. Calculate $p_i$ and $p_f$ for both trials. Is momentum still conserved for inelastic collisions? 3. What happens in a completely inelastic collision?

          Table 3 Elastic Collisions: Total Momentum and Kinetic Energy
Pi total
Prtotal
% difference
KEi
KEf
% difference
Trial 1
Trial 2
Trial 3
Trial 4
Part B. INELASTIC COLLISIONS
Now let us check what happens when the collision is inelastic. We will repeat the collision from
Trial 4 above (stationary target, different masses) and see what happens when the elasticity (slider
bar) is set first to 50% and then to 0% (completely inelastic)
1. Fill in Table 4 using the online animation. Adjust the elasticity slider bar to set the elasticity.
Table 4: Inelastic Collisions
m1
Vli
pli
m2
V2i
p2i
V1f
p1f
V2f
p2f
Results Elasticity
(kg) (m/s) (kg\cdot m/s) (kg) (m/s) (kg\cdot m/s) (m/s) (kg\cdot m/s) (m/s) (kg\cdot m/s)
Trial 1 50%
2.0 1.5
1.0 0.0
Trial 2 0%
2.0 1.5
1.0 0.0
2. Calculate $p_i$ and $p_f$ for both trials. Is momentum still conserved for inelastic collisions?
3. What happens in a completely inelastic collision?

Table 3 Elastic Collisions: Total Momentum and Kinetic Energy
Pi total
Prtotal
% difference
KEi
KEf
% difference
Trial 1
Trial 2
Trial 3
Trial 4
Part B. INELASTIC COLLISIONS
Now let us check what happens when the collision is inelastic. We will repeat the collision from
Trial 4 above (stationary target, different masses) and see what happens when the elasticity (slider
bar) is set first to 50% and then to 0% (completely inelastic)
1. Fill in Table 4 using the online animation. Adjust the elasticity slider bar to set the elasticity.
Table 4: Inelastic Collisions
m1
Vli
pli
m2
V2i
p2i
V1f
p1f
V2f
p2f
Results Elasticity
(kg) (m/s) (kg·m/s) (kg) (m/s) (kg·m/s) (m/s) (kg·m/s) (m/s) (kg·m/s)
Trial 1 50%
2.0 1.5
1.0 0.0
Trial 2 0%
2.0 1.5
1.0 0.0
2. Calculate pi and pf for both trials. Is momentum still conserved for inelastic collisions?
3. What happens in a completely inelastic collision?

Added by Paul W.

Question

Please give Ace some feedback