Unchanging motion' is when the body is at rest or is moving with a steady speed in a straight line. Balanced forces are responsible for unchanging motion. Balanced forces are forces where the ...

Isaac Newton made statements in his Laws of Motion about the effect of balanced and unbalanced forces. Newton's First Law is concerned with balanced forces. It states that if a body is at rest and ...

Newton began to question the environment around him ... the law of universal gravitation and began forming his three laws of motion. After the plague subsided in 1667, Newton returned to Cambridge ...