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 U/M1 + M2
B
M2 U/M1 + M2
C
M1 + M2/M1 U
D
M1 - M2/M1 U
E
M1 U/M1 - M2
Verified Correct Answer: A.
Physical Principles & Numerical Solution
M1U + M2 x 0 = (M1 + M2)v
V = M1 U/M1 + M2
Source: Myschool Past Questions Archive (Record #24997)