You will use this problem for Questions 1 and 2.  Read caref…

You will use this problem for Questions 1 and 2.  Read carefully!   A box is moved 3 m across a rough surface by the force shown in the diagram below.  Q1:  How much work is done by the 40 N force? Q2: How much work does friction do as the box is moved 3 m? For this question, enter the answer to Q1.