Question

Problem 6.07 7 of 13 Constants In a certain library the first shelf is 15.0 cm off the ground, and the remaining four shelves are each spaced 31.0 cm above the previous one. Part A If the average book has a mass of 1.70 kg with a height of 22.0 cm, and an average shelf holds 25 books (standing vertically), how much work is required to fill all the shelves, assuming the books are al laying flat on the floor to start? Express your answer to three significant figures and include the appropriate units. НА ? x 10" W= Value Units Submit Request Answer

Answer 1

Solution For lowest self work done in W 8 = 9.81 misec2 25 mg (0.15 +0-11) ma 1070 Ly No. of book For 2nd self W2 = 25mg (0.15 + 0.31 tooll )= 25 mg (0.51 3rd self W3 = 25 mg (0.15 + 2(0031) +0.11) - 250 mg) (0.88] 2 5mg (1019) Wy= Wg= 25mg (105) Total work done wit wat wy + Wytws 25 mg (0.26 +0.5770088 +*19+105) 1834.470 joules 1834 470 joules