Two carts mounted on an air track are moving toward one another. Cart 1 has a speed of 2.20 m/s and a mass of 0.440 kg. Cart 2 has a mass of 0.740 kg. (a) If the total momentum of the system is to be zero, what is the initial speed of cart 2

Respuesta :

Answer:

[tex]v_2=-1.308\ m/s[/tex]

Explanation:

It is given that,

Mass of cart 1, [tex]m_1=0.44\ kg[/tex]

Mass of cart 2, [tex]m_2=0.74\ kg[/tex]  

Speed of cart 1, [tex]v_1=2.2\ m/s[/tex]

If the total momentum of the system is zero, the initial momentum is equal to the final momentum as :

[tex]m_1v_1=m_2v_2[/tex]

Let [tex]v_2[/tex] is the initial speed of cart 2

[tex]0.44\times 2.2=0.74v_2[/tex]

[tex]v_2=-1.308\ m/s[/tex]

Initial speed of the cart 2 is 1.308 m/s and it is moving in opposite direction of the cart 1.