Ared cart moves toward the right at speed v on a frictionless track while a blue cart moves toward it at speed 2v. the mass of the blue cart is m while the mass of the red card is 2m. before the carts collide: (a) what is the momentum of the two-cart system, in terms of m and v?

Net momentum,    

Explanation:

Let m is the mass of blue cart and 2m is the mass of red cart. v is the speed of red cart and 2v is the speed of blue cart. Net momentum is equal to the sum of momentum of blue and red cart.

Net momentum = momentum of red cart + momentum of blue cart

So, the momentum of the two-cart system is 4 mv. Hence, this is the required solution.

okay i have so many questions. but the big one here is: um wt..f is this mess? ?

the word that best describes martin luther king jr.'s tone in the video is dignified

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