A body of mass M1 moving with a velocity U collides with a stationary body of mass M2 and both move with a common velocity V lf linear momentum is conserved, which of the following expressions correctly represents V?
-
A.
M1 UM1 + M2
-
B.M2 UM1 + M2
-
C.
M1 + M2M1 U
-
D.
M1 – M2M1 U
-
E.M1 UM1 – M2
Correct Answer: Option A
Explanation
M1U + M2 x 0 = (M1 + M2)v
V =
M1 UM1 + M2