Solve 25th question.
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According to law or for conservation of momentum
Initial momentum = Final momentum
0 = P1 + P2 + P3
P3 = -(P1 + P2)
mv = -sqrt(P1^2 + P2^2) >>>>[Since P1 and P2 are perpendicular to each other]
m*(-40) = -sqrt[ (1*12)^2 + (2*8)^2 ]
40m = sqrt(400)
40m = 20
m = 0.5kg
Total mass of shell = 1kg + 2kg + 0.5kg = 3.5kg
Initial momentum = Final momentum
0 = P1 + P2 + P3
P3 = -(P1 + P2)
mv = -sqrt(P1^2 + P2^2) >>>>[Since P1 and P2 are perpendicular to each other]
m*(-40) = -sqrt[ (1*12)^2 + (2*8)^2 ]
40m = sqrt(400)
40m = 20
m = 0.5kg
Total mass of shell = 1kg + 2kg + 0.5kg = 3.5kg
tejasreee:
Thanks!!
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