There is a compressed spring between two laboratory carts of masses m1 = 135 g a

Question

There is a compressed spring between two laboratory carts of masses m1 = 135 g and m2 = 222 g. Initially, the carts are held at rest on a horizontal track as shown in figure A. The carts are released, and the cart of mass m1 has velocity v11.735i m/s in the positive x direction as in figure B. Assume rolling friction is negligible. m2 A. v2 =? B. (a) What is the net external force on the two-cart system? (Express your answer in vector form.) F= (b) Find the velocity of cart 2. (Express your answer in vector form.) m/s

Explanation / Answer

(A) Net external force, F = 0

(B) Applying momentum conservation,

m1 v1 + m2 v2 = 0

(135)(1.735i) + (222)(v2) = 0

v2 = - 1.055 i m/s ........Ans

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