Is there some information you're not letting us in on? For instance, is the turntable undergoing negative angular acceleration?eurekameh said:http://imageshack.us/photo/my-images/440/49789320.png/
Assuming the indicated direction of motion, why is friction acting as shown in the tangential direction? Shouldn't it be acting in the opposite direction?
FBD Friction Confusion refers to a common misunderstanding or confusion surrounding the concept of friction in free body diagrams (FBDs) in physics. It involves the incorrect placement or interpretation of frictional forces in FBDs, leading to incorrect solutions and a lack of understanding of the underlying principles.
FBD Friction Confusion can significantly impact a student's understanding and application of Newton's laws of motion and other fundamental principles in physics. It can also lead to incorrect calculations and results, which can be detrimental in more advanced physics topics.
One common misconception is that frictional forces should always be drawn in the direction opposite of motion, when in reality, the direction of friction depends on the direction of the applied force. Another misconception is that frictional forces should always be equal to the applied force, when in fact, they can vary depending on the surface and other factors.
One way to avoid FBD Friction Confusion is to fully understand the concept of friction and its role in FBDs. It is also important to carefully analyze the given situation and determine the direction and magnitude of all forces, including frictional forces, before drawing the FBD. Practice and seeking clarification from a teacher or tutor can also help prevent confusion.
While FBD Friction Confusion can hinder understanding and application of physics principles, it can also serve as a learning opportunity. By identifying and correcting misconceptions about friction in FBDs, students can deepen their understanding and improve their problem-solving skills in physics.