Warm Up What is the tension in a 2.75 m cord that whirls a 5.6 kg object in a circular path at a speed of 4.83 m/s?

Slides:



Advertisements
Similar presentations
Center of Gravity.
Advertisements

Center of Mass. Consider motion of object as if all mass located at C of G.
4/21 & 4/22 Do Now – TAKE ONE Don’t forget your HW for tonight!!! Read & Study 10.1, 10.4, 10.6 Complete #1-3, 8-10, (p. 147) 10 points!!!
Potential Energy, Conservation of Energy
Chapter 10 Center of Gravity
Static Equilibrium KEY
Circular Motion Terms  The point or line that is the center of the circle is the axis of rotation.  If the axis of rotation is inside the object, the.
THIS PROJECT IS DONE BY: M.ANITHA (X STD) UNDER THE GUIDANCE OF: MR. K.V.RAJESH.
APPLIED KINESIOLOGY PRACTICAL 1.
Torque Again.
Centre of Gravity and Stability. CENTRE OF GRAVITY  The centre of gravity of a body is the point about which its weight can be considered to act.  In.
Rotational Equilibrium
Center of Gravity Chapter 10.
PA Multi-Region STEM Partnership Sept 2013 – May 2014 Monthly Meetings (Torque & Center of Mass) Eastern Region Philadelphia/Chester County.
Center of Gravity Unit 6. Center of gravity- the point on an object located at the object’s average position of weight Symmetrical object (baseball)-
CENTER OF GRAVITY By: Jordan Young, HannaH Simmons, Nik Schmidt, Renè Chatneuf, Katrina Schmidt, MaryAnne Cavasos.
Alta High Conceptual Physics
Center of Gravity Plus stability and why things don’t fall over, or “weebles wobble but they don’t fall down”.
Chapters 9,10,&11 review Again, notes are recommended.
Writing prompt: 10/24/06 If you sit in my rolley chair and push off the wall with your feet, which way will you move? Explain why this happens.
Center of Gravity. Center of Gravity(CG): point located at the center of an object’s weight distribution. For symmetric object, it is located at geometric.
Torque and Center of Gravity
Physics Jeopardy Chapters Energy Circular Motion CenterofGravity Rotational Mechanics Little Bit of everything FINAL QUESTION FINAL.
Kinesiology Unit 8 1. Definition of Balance: An individual’s ability to control stability 2.
بسم الله الرحمن الرحيم. The balancing, equilibrium or pivoting point of the body. It is the point where the sum of all the forces and force movements.
What do you think of when
Rotation & Centripetal Force
2 pt 3 pt 4 pt 5pt 1 pt 2 pt 3 pt 4 pt 5 pt 1 pt 2pt 3 pt 4pt 5 pt 1pt 2pt 3 pt 4 pt 5 pt 2 pt 4 pt 6 pt 8 pt 10 pt 1pt Vocabulary Words Describing Motion.
Uniform Circular Motion. Motion of an object moving in a circle at constant speed. Motion of an object moving in a circle at constant speed. The linear.
Ch 5. Dynamics of Uniform Circular Motion Uniform circular motion  constant speed & circular path. T = time to travel once around the circle. Example.
Push and Pull Newton’s Laws. Newton’s First Law An object at rest remains at rest, and an object in motion continues in motion with constant velocity.
Center of Mass AP Physics C Mrs. Coyle. Center of Mass The point of an object at which all the mass of the object is thought to be concentrated. Average.
Lecture 10: Work & Energy.
Chapter 10 Center of Gravity Center of Gravity Center of Gravity – (CG) the point at the center of its weight distribution.
Circular Motion / Rotational Mechanics Notes 5’s.
Lots of fun! Win valuable prizes!. 1. Two people sit on a balanced seesaw. When one person leans toward the center of the seesaw, that person's end of.
Tyler Skorupsky Andrew Sutherland.  The center of gravity of an object is the point at the center of its weight distribution.
Project. Lesson #65 Topic: Center of Mass / Gravity Objectives: (After this class I will be able to) 1. Define center of gravity / mass 2. Locate an object’s.
By Will Weston and Bill Weigle.  Stability pertains to the movement of an object’s center of gravity (also referred to as CG).  Relates to the state.
V P Power, force and velocity Power is the rate at which a force does work. The SI unit of power is the watt (W) 1 W is the rate f working of 1 J s -1.
Rotational Motion of an Object Physics Matters: Chapter 7.
Center of Mass Definition “The center of mass (or mass center) is the mean location of all the mass in a system” Marked with:
Center of Gravity Chapter 10.
Circular Motion, Center of Gravity, & Rotational Mechanics
CH 3 Forces. Sec 1 Newton’s 2 nd Law Net force acting on an object causes the object to accelerate in the direction of the net force Amount of “a” depends.
Work, Energy and Power Ms Houts AP Physics C Chapters 7 & 8.
Physics Chapter 8 – Rotational Motion Part 1.
Chapter 6 and 7. momentum = mass x velocity p = mv units: kgm/s or Ns.
Jan Roscoe Publications AQA Examinations AS and A Level Physical Education AS / A year 1 (A1) AS 7581 Section 3.1 Factors affecting participation in physical.
Happy gadara( ). Happy gadara( )
Energy and its Conservation Physics Mrs. Coyle. Part I Mechanical Energy – Potential – Kinetic Work Energy Theorem.
Torque & Rotational Motion. Center of Mass Average location of an object’s mass.
Lowering the CG of an Object The CG of an object tends to take the lowest position available.
Energy and its Conservation Physics. Part I Mechanical Energy – Potential – Kinetic Work Energy Theorem.
Torque & Center of Gravity
What is force? A force is a push or pull
Circular Motion.
Rotational Equilibrium
Circular Motion Torque.
Center of Gravity Chapter 10.
Center of mass.
PHY131H1F - Class 19 Today, Chapter 12:
Position The location of an object.
MECHANICS THIS PROJECT IS DONE BY: M.ANITHA (X STD)
Chapter 10 : Center of Gravity
physics modify 2 problem values Sem I Jeopardy
Warm-Up! Tuesday, January 29
Moments and Centers of Mass
Forces Ms. MacGillivray.
Centre of Gravity Definition Finding the centre of gravity Stability
Presentation transcript:

Warm Up What is the tension in a 2.75 m cord that whirls a 5.6 kg object in a circular path at a speed of 4.83 m/s?

Warm Up What is the tension in a 2.75 m cord that whirls a 5.6 kg object in a circular path at a speed of 4.83 m/s? F = mv 2 = (5.6 kg)(4.83m/s) 2 = 47.5 N r 2.75 m

Physics Ch. 10 Center of Gravity

Start with a silly activity…. What happens when you try to touch your toes and have your back and heels against a wall??

Center of Gravity The average position of weight. Center of Mass Average position of matter.

If you attempt to balance an L shaped object on its small end, what would happen? Why?

It would fall. Why? Because it was not supported at its average position of weight (CofG)

Stability Stable UnstableNeutral Equilibrium Equilibrium Equilibrium

Stability Stable Unstable Neutral Equilibrium Equilibrium Equilibrium Work must be done to raise CofG

Stability Stable Unstable Neutral Equilibrium Equilibrium Equilibrium Work must be CofG is lowered with done to raise CofG any displacement

Stability Stable Unstable Neutral Equilibrium Equilibrium Equilibrium Work must be CofG is lowered with Displacement will done to raise CofG any displacement neither raise nor lower CofG

Which block requires more work to tip over? Why?

I need a volunteer Sit in a chair at the front of class. Attempt to stand up without putting your feet under your chair (Your feet need to be out in front of you chair) What happens? Why?

Center of gravity in organisms with limbs is not located in a fixed position! It depends on orientation!

Next Now its time for Myth Busters: Circular Motion!!!