Car 1 is travelling at 30m/s East when it collides with Car 2 who was travelling at 20m/s North. They stick together and continue to travel forwards, what is the final velocity of the clump?

Question

anonymous · Answer

Im not sure how to do this because im not sure about the masses but i'll still try
m1v1+m2v2= 2m3v3
The equation wont be is (-) beause they are not moving in opposite direction
Considering the masses to be the same
m1x30+m2x20=2m3v3
the mass gets cancelled as it is the same leaving
30+20= 2v3
50/2=v3
25=v3

anonymous · Answer

really sorry the masses are 3900 for car 1 and 1890 for car 2. is it possible now?

anonymous · Answer

There should be another value of veloctiy given

anonymous · Answer

they have the same final velocity, they are stuck together.

rane · Answer

http://www.dummies.com/how-to/content/how-to-calculate-velocities-of-two-objects-with-di.html

rane · Answer

this will help u how to find the final velocity

rane · Answer

after the collision

anonymous · Answer

Thanks :)

rane · Answer

yw:)