{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

L19 - Remember:ThisWeek...

This preview shows pages 1–6. Sign up to view the full content.

Remember: This Week Read Ch. 5 on circular mo8on & gravity: 5.1, 5.2, 5.6, 5.7, 5.±, 5.9. Recita’on Assignment #4 : Circular Mo8on & Gravity. Print assignment out and bring to recita8on sec8on. CAPA assignment #7 is due Friday evening at 10 PM, to be done on‐line. Mid‐Term Exam II: next Tuesday at 7:30 PM here and next door. Last half of Ch. 3, Ch. 4, & Ch. 5. L19 W 2/24/10 1 Physics 2010

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
L19 W 2/24/10 Physics 2010 2 Dynamics: Newton’s Laws of Motion Newton’s Laws hold in an “Inertial Reference Frame”. I. “Law of Inertia”: Every object continues in its state of rest, or uniform motion (constant velocity in a straight line), as long as no net force acts on it. II. Acceleration is proportional to force and inversely proportional to mass : III.Whenever one object exerts a force on a second object, the second exerts an equal force in the opposite direction on the ±rst: F  net = ma F AB = F BA
L19 W 2/24/10 Physics 2010 3 Ch. 5: Circular Motion; Gravitation Sections: 5-1. Kinematics of Uniform Circular Motion 5-2. Dynamics of Uniform Circular Motion 5-6. Newton’s Law of Universal Gravitation 5-7. Gravity Near Earth’s Surface 5-8. Satellites and “Weightlessness” 5-9. Kepler’s Laws and Newton’s Synthesis.

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
L19 W 2/24/10 Physics 2010 4 Example 2. Conical Pendulum (tetherball). θ r r = v 2 g 1 2 1 + 2 Lg v 2 2 1 2 1/2 v (m/s) v (m/s) L = 2m r v r constant L 2 r 2 = h L
L18 M 2/22/10 Physics 2010 5 Newton’s Law of Universal Gravitation Insight: what keeps the Moon in orbit around the Earth and the Earth in orbit around the Sun is exactly the same thing that causes an “apple to fall from a tree”.

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

Page1 / 20

L19 - Remember:ThisWeek...

This preview shows document pages 1 - 6. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online