A 3000 kg truck travelling at 50km/hr strikes a stationary 1000 kg car, locking the two vehicles together. What is the final velocity of the two vehicles?
(Please show work)

50 x 3000 = 150000/4000 = 37.5

37.5 I think.

Explanation:

Hope this helps!

answer;

d. are made mostly of liquid

explanation;

-the general   composition and structure planets includes; they have a thick gas and liquid layer covering a small,solid core. mostly the gases are hydrogen and helium atmosphere and layers of liquid hydrogen. for instance neptune and uranus are examples of the outer planets, they have a core covered by ice and ammonia.

-neptune's atmosphere is hydrogen and helium with a bit of methane so there is no oxygen to breath and the interior is made up of frozen water and ammonia with a rock and iron core. thus, there is no liquid water or solid surface to survive.

at right angles to each other