Final answer:
The correct action to add a new curved right arrow above another arrow in a slide is 'a) Insert shape'. For a physics lesson on vector addition, this involves drawing arrows to represent vectors head-to-tail for subsequent addition.
Step-by-step explanation:
The task described is about adding a curved right arrow above another arrow in a slide presentation, which suggests the use of a software tool to insert and manipulate shapes. This could be related to a physics lesson on vector addition where vectors are represented by arrows. The correct option to add a new shape would be a) Insert shape. The subsequent actions to properly position and orient the arrow might involve c) Rotate shape and d) Format shape to ensure it accurately represents the vector's direction and magnitude.
In terms of representing vector addition in physics, the instructions given pertain to drawing vectors in a head-to-tail method, allowing for the subsequent addition of these vectors to find a resultant vector. This is typically done on paper using a ruler and protractor or digitally using graphic software capable of inserting and manipulating shapes.