LINEAR KINEMATIC Flashcards
what is kinematic + exemple
the study of description of the spatial and temporal characteristics of motion without regard to causative forces.: position, displacement, distance, velocity, speed, and acceleration.
rectilinear motion and curvilinear motion is what type of motion
linear motion
what is angular motion
motion when all points on a body or object move in circles (or parts of circles) about the same fixed central line or axis.
what is general motion
combination of linear and angular motions
what are the 2 things important for motion to occur
space and time
which type of motion is also referred to as translation
linear motion
what is rectilinear translation
occurs when all points on a body or object move in a straight line so that the direction of motion does not change, the orientation of the object does not change, and all points on the object move the same distance.
what is curvilinear
translation occurs when all points on a body or object move so that the orientation of the object does not change and all points on the object move the same distance
what is the difference btw curvilinear and rectilinear
curvilinear the direction of motion of the object is constantly changing even though the orientation does not change
T/F: angular motion can only occurs within the body
false, can occurs within and outside the body
what is linear distance
total length of the path travelled
what is linear displacement
distance from initial position to final position, displacement is a straight line (vector quantity)
difference between speed and velocity
speed is a scalar and velocity is a vector
what is speed
rate of distance traveled
what is velocity
rate of motion in a specific direction (rate of displacement)
so velocity is always the same even if someone as a higher distance travelled
what is instantaneous speed
speed of an object at a specific instant of time
if we are told what a runner’s average speed was for an interval of time, what can we assume
assume that the instantaneous speed was faster than the average speed during some part and slower Thant the average speed during other part of that interval
what is the direction of the acceleration if an object is speeding up in the negative direction
negative
which parameters do we need to work on if we want to win a 200-m sprint
max speed
