Car A has a mass of 1000-kg and is moving at 15 m/s. A giant blob has a mass of 700-kg and is not moving. After colliding, the objects stick together. How fast are they now moving?

After colliding, the speed of 2 objects is 8.82m/s

Explanation:

Formula:

Formula:m1u1 + m2u2 = v (m1 + m2)

m = mass

u = initial velocity

v = final velocity

(1000*15) + (700*0) = v (1700)

1700v = 15000

v = 8.82m/s

(Correct me if i am wrong)