The point at which the entire weight of the body
may be considered as concentrated.
A single vertical upward force equal to the weight
and applied at the center of gravity will keep the
body in equilibrium.
If the acceleration due to gravity (g
Equilibrium and Torque
An object is in Equilibrium when:
1. There is no net force acting on the object
2. There is no net Torque (well get to this later)
In other words, the object is NOT experiencing
linear acceleration or rotational accelera
4th Quarter AY 2015 - 2016
Physics 11 Problem Set 2: Rotation of Rigid Bodies
Lecturer: Jacque Lynn F. Gabayno
Solve each problem clearly and completely for full credit. Encircle the letter of the correct answer.
1. Circular mo
MOMENT/ TORQUE ()
-The ability of a force to rotate a body or system
about an axis.
-Mathematically, it is the product of the force and
its lever arm or moment arm.
= F d
F = force or applied force
d = moment arm or lever
Two types of flow
2.Turbulent flow adisorderlyflowofmolecules.Theytend
The Continuity Principle
In any streamline flow
Solve the following problems:
1. Mercury is poured into a U-tube (see figure below - left). The left arm of the tube has cross-sectional area A1 of 10.0 cm2, and
the right arm has a cross-sectional area A2 of 5.00 cm2. One hundred grams of water are then
property by virtue of which a body returns to its original size
and shape when the forces that deformed it are removed.
A lightly-deformed material will recover its original
after the stress is removed. Elastic
Dynamics of Rotation to
Jacque Lynn F Gabayno, Ph.D.
Physical quantities related to translational
motion: displacement, velocity, and acceleration
Kinematic equations in 1D and 2D
Define quantities in ro