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Friction wears out steps of staircases in buildings and foot over -bridges

Disadvantages of Friction

Last Updated on July 3, 2023 By Mrs Shilpi Nagpal

Question 1 What makes the steps of foot over bridges at railway station to wear out slowly? Question 2 Which part wear away first in shoe? Give a reason for your answer? Question 3 Why do brake pads of bicycles have to be replaced quite often? Question 4 A pencil eraser loses tiny pieces of rubber each time you use it. Why does this happen? Question 5 What happen … [Read more...] about Disadvantages of Friction

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