Suggestions: First explain the direction of tangential velocity from a conceptual standpoint, then show the cross product. Can also discuss the velocity of other points on the blade. Ask students to set up the cross product, get the –j or downward direction.
Suggestions: First explain the direction of tangential velocity from a conceptual standpoint, then show the cross product. Can also discuss the velocity of other points on the blade. Ask students to set up the cross product, get the –j or downward direction.