Asked by sara

You know that a collision must be "elastic" if:

The momentum of the two-object system doesn't change
The sum of the final kinetic energies equals the sum of the initial kinetic energies
There is no change in the internal energies of the objects (thermal energy, vibrational energy, etc.)
The colliding objects stick together The colliding objects are stretchy or squishy
which are true?

Answers

Answered by bobpursley
b.
c.

a and d are nor revealing to determine elasticity.
Answered by sara
thanks,
can you help me with this one

What is the angular momentum A if A = <7, 5, 0> m and = <-20, 10, 0> kg·m/s?
Answered by sara
I thought you just do 7(20)+(5)10
Answered by bobpursley
If it is in three orthagonal dimensions, you have to

sqrt((140^2)+50^2 + 0^2)
There are no AI answers yet. The ability to request AI answers is coming soon!

Related Questions