Newtons three laws of motion

Have you ever wondered why in space you can throw something, and it will going but on earth you throw something, and it hits the ground at some point in time?Well this is because of Sir Isaac Newton's three laws of motion. Newton's first law is "Every object in it's state of rest or uniform motion in a straight line well remain in it's current state unless it is effected by an exteral force." This force is mostly going to be gravity, and friction. Newton's second law of motion is "Force is equal to the change in momentum (mV) per change in time. For a constent mass, force equals mass times acceleration." F=m*a. This means that the force is determined by the speed, and the mass. Newton's third law of motion is "For every action there is an opposite reaction." This means if you are stepping off of a boat you might go to the left while the boat is going to the right. I for one find this to be fasinating because I never knew that if I jumped up the earth would move in , and make a dent while we both touch eachother at the same time. Thank you Miss R. for teaching me about Newton's three laws of motion. For more imformation please go to http://www.grc.nasa.gov/WWW/K-12/airplane/newton.html. Stay tuned for another killer blog from Freezyman. Bye.