Introduction to Newton’s Laws

We’ve all felt that way at some point.

Newton is buried at Westminster Abbey Newton is buried at Westminster Abbey. The Latin inscription on his grave reads: Hic depositum est, quod mortale fuit Isaaci Newtoni. This may be translated as: 'Here lies that which was mortal of Isaac Newton'.

In 1684 Dr Halley came to visit him at Cambridge, after they had been some time together, the Dr asked him what he thought the Curve would be that would be described by the Planets supposing the force of attraction towards the Sun to be reciprocal to the square of their distance from it. Sr Isaac replied immediately that it would be an Ellipsis, the Doctor struck with joy & amazement asked him how he knew it, why saith he I have calculated it, whereupon Dr Halley asked him for his calculation without any farther delay. Sr Isaac looked among his papers but could not find it, but he promised him to renew it, & then to send it him.  [Recollecting Newton's account of the meeting after which Halley prompted Newton to write The Principia. When asking Newton this question, Halley was aware, without revealing it to Newton that Robert Hooke had made this hypothesis of plantary motion a decade earlier.] 

Newton’s First Law

a=2m/s2 a=0.5 m/s2 a= 1.3 m/s2

Normal Force