(6%) Problem 1: A box with a mass m = 82 kilograms is being pulled by a constant force F =146 newtons at an angle 022 degrees. The initial speed of the box is zero m/s. W = y M F 20 X 33% Part (a) Write an expression for the work done by force F as the block moves a horizontal distance d. I cos(a) cos(Q) cos(0) sin(a) sin() sin(0) a () 7 89 HOME 14 5 6 d F g / 1 2 3 h j m P + 0 END t tan(a) tan() tan(0) VO BACKSPACE DEL CLEAR Submit Hint Feedback I give up! Grade Summary Deductions Potential Submissions 0% 100% Attempts remaining: 3 (4% per attempt) detailed view Hints: 4% deduction per hint. Hints remaining: 2 Feedback: 5% deduction per feedback. 33% Part (b) How much work, in joules, was done in moving the block 6.7 meters? A33% Part (c) What is the speed of the box at when the magnitude of the displacement is d = 6.7 m if the surface is frictionless?