An athlete does one push-up. In the process, she moves half of her body weight, 250 newtons, a distance of 20 centimeters. This distance is the distance her gravity moves when she fully extends her arms. How much work did she do after one push-up?
We know that an athlete moves half of her body weight 250 N a distance of 20 cm. So: F = 250 N, d = 20 cm = 0.2 m The work formula: W = F * d W = 250 N * 0.2 m W = 50 J Answer: Her work after one push-up is 50 J.
