TY  - BOOK
AU  - Kristen Petersen
TI  - Understanding The Laws Of Motion
SN  - 9781502601407
U1  - 531 PET 
N2  - Sir Isaac Newton formulated the laws of universal gravitation and the three laws of motion. These explain how forces act on matter, and on how matter responds to forces. This leads to an understanding of how things move
ER  -