An object in an accelerated frame will usually be compelled to move relative to the frame by a fictitious force. If this force is opposed mechanically, the transmission of this holding force through the object will make the object seem to feel accelerational g-forces as if it were suspended in a gravitational field, otherwise the force will be not directly detectable (not felt) except by the motion it creates.A similar effect occurs in circular motion, circular for the standpoint of an inertial frame of reference attached to the road, with the fictitious force called the centrifugal force, which is apparent in a non-inertial frame of reference. If a car is moving at constant speed around a circular section of road, the occupants will feel pushed outside, away from the center of the turn. Again the situation can be viewed from inertial or non-inertial frames.
Lecture Slides are screen-captured images of important points in the lecture. Students can download and print out these lecture slide images to do practice problems as well as take notes while watching the lecture.