Lecture 3 - Jeffrey McCallum - Circular Motion.pdf - School of ...
Lecture 3 - Jeffrey McCallum - Circular Motion.pdf - School of ...
Lecture 3 - Jeffrey McCallum - Circular Motion.pdf - School of ...
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
3/24/10<br />
<strong>Circular</strong> <strong>Motion</strong>: Ball on String<br />
<strong>Circular</strong> <strong>Motion</strong>: Ball on String<br />
Similar Triangles<br />
R<br />
θ<br />
R<br />
?<br />
<strong>Circular</strong> <strong>Motion</strong>: Ball on String<br />
Newton’s Laws<br />
! Newton 2: An object <strong>of</strong> mass m subjected to<br />
a net force F net will undergo acceleration a<br />
given by:<br />
The acceleration vector is in the same direction as the<br />
net force vector.<br />
<strong>Circular</strong> <strong>Motion</strong>: Ball on String<br />
Newton’s Laws<br />
For uniform circular motion we<br />
require a net force directed toward<br />
the centre <strong>of</strong> the circle.<br />
! Newton 3: When two objects interact, the<br />
forces that the objects exert on each other<br />
(action/reaction forces) are always equal in<br />
magnitude and opposite in direction.<br />
4
Change language