LIFESCI 3J03 Lecture Notes - Lecture 7: Ski Jumping, Linear Motion, Kinematics
2 Oct 2016
School
Department
Course
Professor
Document Summary
Life sci 3j03 lecture 7 - linear kinematics. 140n for question 7 what is the magnitude of the vertical reaction force at the shoulder if the gravitational force (w) = 60. 679n for question 5 for tension in the cable required for static equilibrium. Kinematics are variables that describe motion (the act or process of changing place or position with respect to some reference point) Use xy axis to system to define two orthogonal directions of forces: can also use it to describe changes in positon or displacement. Delta represents change: displacement in x or y. Displacement is the vector quantity that describes an object"s change in position so we use trigonometry to calculate the resultant magnitude (r) and direction (theta) of the displacement. Distance describes the total distance traveled by the object: if there is no change in direction, displacement and distance are the same, distance = scalar, displacement = vector (has direction)
