All of these problems are the last of a series of ten, which i cannot solve. Ive given extensive efforts but am now nearly out of time (12pm est). if anone could be of help please feel free. A 20 g ball of clay traveling east at 2m/s collides with a 30 g ball of clay traveling 30 degrees south of west at 1m/s. what is the speed of the resulting blob, m/s? Dan is gliding on his skateboard at 2.00m/s. He suddenly jumps backward off the skateboard, kicking the skateboard forward at 7.00m/s(as measured by an observer on the ground). Dan's mass is 60.0 kg and the skateboard's mass is 6.00kg. how fast is dan going as his feet hit the ground A 10.0g ball of clay traveling east at 7.00m/s collides and sticks together with a 10.0g ball of clay traveling north at 5.50m/s. what is the speed of the resulting clay A spaceship of mass 2.3×10^6kg is cruising at a speed of 6×10^6m/s when the antimatter reactor fails, blowing the ship into three pieces. One section, having a mass of 4.8×10^5kg, is blown straight backward with a speed of 2.3×10^6m/s. A second piece, with mass 7.6×10^5kg, continues forward at 1.3×10^6m/s.