The issue of the New York Times had a mass of 5.4 kg. Suppose a skateboarder picks up a copy of this issue to have a look at the comic pages while rolling backward on the sakteboard. Upon realizing that the New York Times doesn't have a "funnies" section, the skateboarder promptly throws the entire issue in a recycling container. The newspaper is thrown forward with a speed of 7.4m/s. When the skater throws the newspaper away, he rolls backwards at a speed of 1.4m/s. If the combined mass of the skateboarder and the skateboard is 50.0kg, what is the initial velocity of the skateboarder and newspaper? I don't know if it's asking for the combined Vi of the skateboarder and the newspaper or if it's asking for each. This is what I did though 1. msvs,i + mnvn,i= msvs,f + mnvn,f = 50(vi+vi2)= (44.6)(-1.4)+(5.4)(7.4) 2. 50(vi+vi2) = -22.48 3. -22.48/50= -.4496 I don't know if that's right, but I have no idea how to do it! help please!