1.

To show that total Momentum before collision is equal to total Momentum after collision ​

Answer»

ANSWER:

FORCE =  CHANGE IN MOMENTUM /TIME

F12 =   CHANGE IN MOMENTUM PRODUCED BY MASS M2/ COLLISION TIME

F12 = (M2V2 - M2U2) / T

SIMILARLY

F21 = (M1V1 -M1U1) / T

FROM NEWTON 's THIRD LAW

F₁₂ = -F₂₁

(M2V2 - M2U2) / T   =   -(M1V1 -M1U1) / T

M1U1 + M2U2  =  M1V1  +  M2V2

Explanation:



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