I don't understand how to do this question I need help please.
For unlimited access to Homework Help, a Homework+ subscription is required.
I don't understand how to do part b). I don't know what the Volume =. Please help to more clearly demonstrate the solution using the equivilent values.
I don't understand how to do this at all.
Could someone please help me understand how the Normal Force and the forces in the x- and y-axis are found? I know it has to do with the cosine and sine of an angle, but why? In this problem, how do you know that the angle under the piano is 28? I don't understand the drawing provided with the solution. THANK YOU!