PHY 222 Study Guide - Summer 2018, Comprehensive Midterm Notes - Acceleration, Normal Force, Newton Unit
PHY 222
MIDTERM EXAM
STUDY GUIDE
Fall 2018
Newton's second law
F=ma
Newton's third law
Every action has an equal and opposite reaction
Position of centre of mass of rigid body
rcm = integral of xdm/integral dm
Coriolis Force
Fcor=-2mwo x v
Gyroscopic precession
omega = T/L=mgr/Iw
Radial component of acceleration in inertial reference frame
-rw^2
Centrifugal force
When in rotating reference frame, F=mv^2/r
Rotational kinetic energy
K=0.5Iw^2
Perpendicular axis theorem
Iz=Ix+Iy
Parallel axis theorem
I=Icm+Md^2
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Rotational work
dW=Torque*dTheta
Rotational Power
P=Torque*w
Torque
T=I*alpha
T=rxF
Angular momentum
L=rxp
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Document Summary
Every action has an equal and opposite reaction. Position of centre of mass of rigid body rcm = integral of xdm/integral dm. Radial component of acceleration in inertial reference frame. Bc they can be canceled out by an opposite or equal force (left/right) (up/down) 1 n = 1 kg * m / s^2. 2 types of forces contact and field contact force. A force between two objects that are touching each other. Baseball bat hitting ball, touching chair etc non contact force. Field force ex. ) gravity, earths mass, electro static, magnetic etc. A measure of inertia that tells you a number amount of matter an object contains (mass = what is in u) Mass is the measurement of (kg)the quantity of matter present in an object (protons, neutrons, electrons) The force of gravity that pulls an object to the earth( so depends on location) an object weighs less on the moon but has the same mass on both.
