RRHS PHYSICS 12 UNIT 2 2D MOTION TABLE OF CONTENTS (original) (raw)

Projectile Horizontal and Vertical Motion Independence Demonstrator

SEAQIS Journal of Science Education

This paper developed an instructional tool called Projectile Horizontal and Vertical Component of Motion Independence Demonstrator, user manual, and learning module to physically demonstrate the projectile motions’ abstract concept. Specifically, it was pursued to develop an instructional tool, user manual, and learning modules on projectile motion, determine its evaluation results from the experts, and determine recommendations drawn from the evaluators for the improvement, utilization, and dissemination of developed instructional tools and learning modules. Quantitative and qualitative data were gathered using a four-rating Likert scale evaluation sheet. Results showed that instructional tool and user manual are "very satisfactory" and suggestions for improvement, utilization, and dissemination of the instructional materials are forwarded. Further, it is recommended for replication and use in secondary school as instructional material.

Kinematics and Statics

Chapter 1 is devoted to problems based on one and two dimensions. The use of various kinematical formulae and the sign convention are pointed out. Problems in statics involve force and torque, centre of mass of various systems and equilibrium. 1.1 Basic Concepts and Formulae Motion in One Dimension The notation used is as follows: u = initial velocity, v = final velocity, a = acceleration , s = displacement, t = time (Table 1.1). (i) v = u + at X (ii) s = ut + 1/2at 2 X (iii) v 2 = u 2 + 2as X (iv) s = 1 2 (u + v)t X In each of the equations u is present. Out of the remaining four quantities only three are required. The initial direction of motion is taken as positive. Along this direction u and s and a are taken as positive, t is always positive, v can be positive or negative. As an example, an object is dropped from a rising balloon. Here, the parameters for the object will be as follows: u = initial velocity of the balloon (as seen from the ground) u = +ve, a = −g. t = +ve, v = +ve or −ve depending on the value of t, s = +ve or −ve, if s =−ve, then the object is found below the point it was released. Note that (ii) and (iii) are quadratic. Depending on the value of u, both the roots may be real or only one may be real or both may be imaginary and therefore unphysical.

Integrated Interactive Horizontal and Vertical Velocity Analysis with Non-vertical Algorithm Option

A new interactive velocity analysis algorithm is proposed to improve the quality of production velocity analysis. This algorithm adds horizontal based velocity-editing capability to the original vertical velocity panel so that velocity analysis is performed in both horizontal and vertical directions. It has the option of using a non-vertical velocity analysis algorithm that uses the velocity along oblique ray paths. The new module also includes a pore pressure computation algorithm for optional non-seismic constraint to the velocity analysis.

Studying the Motion with Time-Variable Acceleration

Cadernos do IME, 2021

Neste trabalho é feita uma exposição didática do desenvolvimento diferencial/integral, que leva ao modelo matemático que descreve o movimento retilíneo em sua forma mais geral, tomando como ponto de partida o conceito bem conhecido da aceleração como a taxa de variação da velocidade. Palavras-chave: movimento retilíneo, movimento de aceleração variada, equação geral.