Question 1: Question 2: A railroad car containing explosive material is initiall

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Question 1:

Question 2:

A railroad car containing explosive material is initially traveling south at a speed of 4.9 m/s on level ground. The total mass of the car plus explosives is 2.9 times 104 kg. An accidental spark ignites the explosive, and the car breaks into two pieces, which then roll away along the same track. If one piece has a mass of 1.9 times 104 kg and a final speed of 2.4 m/s toward the south, what is the final speed of the other piece? m/s . Find the center of mass of the four particles in the figure below. Their masses are = 13 kg, m2 = 18 kg, m3 = 7.9 kg, and m4 = 21 kg. XCM = m YCM = m

Explanation / Answer

1) 9.65 (answer)

2) Xcm = - 1.337228715 = -1.34 (answer)

Ycm = - 0.69 (answer)

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