Question

Part A A 2.0 kg book is lying on a 0.72 m -high table. You pick it up and place it on a bookshelf 2.0 m above the floor. During this process, how much work does gravity do on the book? Express your answer to two significant figures and include the appropriate units. W, = Value Units Submit Previous Answers Request Answer X Incorrect; Try Again; 9 attempts remaining Part B During this process, how much work does your hand do on the book? Express your answer to two significant figures and include the appropriate units. W = Value Units Submit Request Answer

Answer 1

2. - 2 0 - 1:28 har m= 2kg ; hi= 0.72 m; deg=am tah= 2 - 0.72 (A) work done by granity = -mg Ah Wg = -2x9.8t 1.28 wg - 25.088 J - 6 Ww= (25.088 ]

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