red mass (kg) 2.00 blue mass (kg) 5.00 red blue red blue Momentum Energy vi (m/s

Question

red mass (kg) 2.00 blue mass (kg) 5.00 red blue red blue Momentum Energy vi (m/s) vi (m/s) vf (m/s) vf (m/s) pi (kgm/s) pf (kg·m/s) Ki(J) Kf(u) 1 3.20 0.001.37 1.80 2 2.20 0.000.95 1.26 3 0.00 5.007.12 -2.14 4 0.00 4.20 6.20 1.80 5 4.00 2.00 1.14 3.20 6 5.50 1.80 0.22 4.10 7 3.20 4.30 4.78 3.60 8 0.80 3.60 4.80 2.02 9 5.20 3.00 6.55 1.66 10 0.55 4.20 6.28 1.51 11 7.40 0.00 2.10 2.10 12 3.60 0.00 1.02 1.02 13 0.00 6.00-4.274.27 14 0.00 3.40 2.42 2.42 15 -5.20-2.23.05-3.05 16 3.601.2 1.90 1.90 17 4.70 2.403.06 3.06 18 3.20 4.60 4.20 4.20 19 6.60 4.00 0.99 0.99 20 2.20 1.20 0.23 0.23 8

Explanation / Answer

solution:

for momentum

p=mv

pi =mvi

table for red

pi =2*3.2

=6.4

similarly others

pf =2*-1.37

=-2.74

Kf =.5*2*(-1.37)2=1.8769

you can do for others too

pi =mvi(for red) pf =mvf (for red) ki=.5mvi2 K=.5mvf2

pi =2*3.2

=6.4

similarly others

pf =2*-1.37

=-2.74

Ki =.5*2*3.22 =10.24

Kf =.5*2*(-1.37)2=1.8769

you can do for others too

4.4 -1.9 0 0 -8

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