If something moves at steady speed Or does not move at all, indeed For resting counts as steady still It’s just that steady there means nil [Break] Forces on it are balanced, we say Where no force does other outweigh When forces balance, here's the key: Acceleration we’ll not see [Break] But where we see a change in speed Or resting things to motion proceed Then forces are unbalanced, know One is high, all others low At least in relative terms As change in speed confirms [Break] No speed change or at rest? Balanced forces, we attest Changing speed in any way? Unbalanced forces on display And changes in direction too? Unbalanced forces are in view And larger is unbalanced force There’s faster change in speed or course And larger is the mass of thing More force to move it must we bring [Break] Now, Sir Isaac Newton In his Third Law of Motion Taught for each and every action There’s equal opposite ree-action Forces thus in pairs exist One obb-ject will next resist [Break] Take a flying ball Thrown against a wall When there is contact Both ball and wall ree-act [Break] Ball changes speed, direction But wall too moves in reflection Yet with much more mass than ball Wall’s movement is extremely small [Break] Force on each is just the same But greater mass wins this game Wall still moves a bit The Third Law ensures it [Break] No speed change or at rest? Balanced forces, we attest Changing speed in any way? Unbalanced forces on display And changes in direction too? Unbalanced forces are in view And larger is unbalanced force There’s faster change in speed or course And larger is the mass of thing More force to move it must we bring [Break] No speed change or at rest? Balanced forces, we attest Changing speed in any way? Unbalanced forces on display And changes in direction too? Unbalanced forces are in view And larger is unbalanced force There’s faster change in speed or course And larger is the mass of thing More force to move it must we bring
