PHYSICS Reviewer PDF Finals Exam

PHYSICS Reviewer Dynamics - Also known as Lagrange- d'Alembert principle, named after Rotational Dynamics - Study of motion the French Mathematician and and the forces cau...

PHYSICS Reviewer Dynamics - Also known as Lagrange- d'Alembert principle, named after Rotational Dynamics - Study of motion the French Mathematician and and the forces causing objects to rotate physicist Jean le Rond about an axis d’Alembert - An alternative form for Newton’s Angular velocity, Angular acceleration, Angular 2nd law of motion displacement, and Time. Based on the principle of virtual work along its inertial forces: Rotation about a fixed point - Mass falling under gravity Ex. Ceiling fan rotation, Rotating hands of a - Parallel axis theorem clock, Opening and closing of a door - Frictionless vertical hoop with a bead Rotation about an axis of rotation Ex. Pushing ball from inclined plane, Earth’s rotation and its rotation around the sun Centrifugal Force - A fictitious force, peculiar to a particle moving on a circular path that has the same magnitude and dimensions as Angular Acceleration: the force that keeps the particle on its circular path(the centripetal force) but points in the opposite direction - IMAGINARY FORCE Formula for Centrifugal Force: D’Alembert’s Principle System of mass of particles, the sum of the difference of the force acting on the system and the time derivatives of the momenta is zero when projected onto any virtual displacement Application of Centripetal force: - Merry go round, Roller coaster, porch swing, washing machine Statics - It is the branch of classical mechanics that is concerned with the analysis of force acting on a physical system that does not experience an acceleration, but rather is in equilibrium with its environment. - Study of rigid bodies - Does not need to understand the deformed shape of a body Conditions for Static equilibrium: 1. Graphical Condition - Forces or vectors are transformed into a forced polygon. 2. Directional Condition - If three or more non-parallel forces or vectors are in equilibrium, then they must be concurrent. 3. Analytical Condition - If forces or vectors are in equilibrium, then it must satisfy the static equation; Friction - Limited resistance to sliding between the surfaces of two bodies in contact REMEMBER: MUST KNOW FORMULA ANTICIPATE MOST RANDOM QUESTION (SA QUIZ DBA, IF KAYA MONG TUMAYO SA DOUBLE DECKER BUS AHAH) PRACTICE PROBLEMS READ MORE ON PPT GL BUKAS NA PALA ‘TO (Comeros,2024)