How much work has gravity done on her

Reference no: EM13276263

a) A 645N woman climbs a staircase that rises at 50 degrees above the horizontal and is 4.95m long. Her speed is a constant 40.0cm/s .

b) How much has the gravitational potential energy increased by her climbing the stairs?

c) How much work has gravity done on her as she climbed the stairs?

Reference no: EM13276263

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