14. A 10,000 kg box car sits at rest on a train track. A 20,000 kg timber car travels west at 1.5 m/s and collides with the empty box car. At the exact same time, a third train car collides with the other end of the box car. This third car is a 14, 000 kg freight car moving at 4 m/s east. If all three cars stick together

if the forces acting on an object are unbalanced, the object will accelerate in the direction of the net force on the object.

explanation:

this is best explained by having an understanding of newton's second law, which states that f=ma. you see, when the forces are unbalanced, net force (sum of all forces) is not zero. therefore making it necessary for the object to have an acceleration in the direction of the net force.

because if the tool that you are using is not balanced it there would be false mass.

a cold ice-tea.

pour in room temperature or cold water. cover the pitcher and refrigerate. steep white or green tea for 6 to 8 hours; steep black or oolong tea for 8 to 12 hours.jun 28, 2015