A body of mass 5kg moving with a velocity of 10ms-1 collides with a stationary body of mass 6kg. If the two bodies stick together and move in the same direction after their collision, calculate their common velocity
-
A.
4.55ms-1 -
B.
12.00ms-1 -
C.
30.00ms-1 -
D.
50.00ms-1
Correct Answer: Option A
Explanation
(M_1V_1 + M_2U_2 = V(M_1 + M_2))
5 x 10 + 6 x 0 = V(5 + 6)
V = (frac{50}{11} = 4.55)m/s