Today I was walking on the third floor of Weinberg, only wearing socks causing my friction to be lowered. While sliding across the floor, a very random thought occurred to me. What if a person was to penguin slide across the floor? If someone started running and then penguin slid across the hallway, four forces would be acting on the person sliding. In the forward direction, would be the force the person started with, and in the opposing direction would be the force of friction. The force bearing down on the person would be the weight of the person, and the force that kept the person from falling through the floor was the normal force. Towards the end of the hallway, the person would slow down because the force of friction was greater than the forward force. Then later, while on the way home, I thought about the same situation, except the person was trying to penguin slide on concrete. The same forces would be acting on the object, but the force of friction would be greater because the concrete is not smooth.
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