photo album by robert mackay. the movers in physics aristotle 384-322 bc copernicus 1473-1543 (de...
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Photo Album
by Robert MacKay
The Movers in Physics
• Aristotle 384-322 BC
• Copernicus 1473-1543 (De Revolutionibus)
• Galileo (1564-1642)
• Newton (1642-1727)
• Einstein (1879-1955)
Law of inertia (Newton’s1st Law)
• Every object continues in its state of rest, or of uniform motion in a straight line, unless it is compelled to change that state by forces impressed upon it.
• acceleration = 0.0 unless the objected is acted on by unbalanced forces
200 N
800 N
? N
200 N
800 N
500 N
Same painter and plank (800N and 200N)
? N
Same painter and plank (800N and 200N)
830 N
Same painter and plank (800N and 200N)
? N
Same painter and plank (800N and 200N)
100 N
150 N
450 N
800 N 800 N
800 N400 N400 N
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