PPT-Biomechanics Projectile motion & Fluid mechanics

Biomechanics Projectile motion amp Fluid mechanics Projectiles A projectile is anything that goes off the ground In sport that could be a rugby ball that has been kicked or a tennis ball that has been struck. &. Lab Activity. Force (. F. ). : strength or power applied upon an object.. F = mass * acceleration. Definitions. Mass (. m. ). : the quantity of matter (atoms/particles) in the object. Gravity (. A projectile is an object upon which the only force acting is gravity. .. An . object dropped from rest is a projectile (provided that the influence of air resistance is negligible). .  . An object that is thrown vertically upward is also a projectile (provided that the influence of air resistance is negligible). . . What is it?. Fluid Mechanics. The study of fluids and the forces on them. .. W. hat are fluids?. Fluid Mechanics. Liquids and gases are fluids.. Fluids take the shape of the container which they occupy.. Ideal Projectile Motion. Ideal Projectile Motion. What do we mean by the word “ideal” here?. T. he projectile behaves like a particle moving in a. vertical coordinate plane.. The only force acting on the projectile during its. Bending load:. Compression strength greater than tensile strength. Fails in tension. Figure from: . Tencer. . Biomechanics in . Orthopaedic. . Trauma, Lippincott, 1994.. Fracture Mechanics. Torsion. Diogo. Bolster. 120 . c. Cushing Hall. dbolster@nd.edu. Course Objectives . Learn the fundamental physics behind fluid flows. Apply these principles to solve engineering problems. Acquire basic knowledge for other courses such as. a = 0 case. no acceleration  velocity is constant  v = v. i. position vs. time  . x. f. = x . i. + v t,. x. i. is the starting . position, . x. f. is the ending position. acceleration = a = constant. Tennis ball. Golf ball. Football. Softball. Soccer ball. Bullet. Hockey puck. Basketball. Volleyball. Arrow. Shot put. Javelin. These are all examples of things that are . projected. , then go off under the . Nature of science: . Observations: The ideas of motion are fundamental to many areas of physics, providing a link to the consideration of forces and their implication. The kinematic equations for uniform acceleration were developed through careful observations of the natural world.. Physics. Coach Taylor. Broad Run High School 2010-2011. Objectives. Recognize that the vertical and horizontal motions of a projectile are independent.. Relate the height, time in the air, and initial vertical velocity of a projectile using its vertical motion, then determine the range.. MAT 493. Definition. Projectile Motion is defined as the motion of an object near the earth’s surface. . ‘Near’ .  Gravity extremely influential to the trajectory of an object. history. Aristotle – projectiles pushed along by some external force that was transmitted through the air called “impetus”. 7-2 Projectile Motion Independence of Motion in 2-D Projectile is an object that has been given an intial thrust (ignore air resistance) Football, Bullet, Baseball Moves through the air under the force of gravity Problems will be solvable using the equations of uniform acceleration. . .  . Projectile motion. This section is devoted to understanding the motion of projectiles. A projectile is an object upon which the only force acting is gravity. The use of one’s body to produce motion that is safe, energy conserving, and anatomically and physiologically efficient and that leads to the maintenance of a person's body balance and control. Benefits of Proper Body Mechanics.