what is Newtons first law
every object will remain at rest or in uniform motion in a straight line unless compelled to change its state by the action of an external force
why did newton start studying gravity
Isaac Newton formulated gravitational theory in 1665 or 1666 after watching an apple fall
what is Newton's second law
Newton's second law of motion is F = ma, or force is equal to mass times acceleration. Learn how to use the formula to calculate acceleration.
dose newton have a forth law
yes It states that every point mass attracts every other point mass by a force acting along the line intersecting both points.
what is Newton's third law
If an object A exerts a force on object B, then object B must exert a force of equal magnitude and opposite direction back on object A.