Why there is a difference in force applied when we push heavy box on road and again when we apply wheels to move the same heavy box on the road.
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Answer:
when there is no wheel attached friction is much more..but when there is wheel attached there will be less friction..u have to study Nlm and friction and rolling chapter to understand it clearly.
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Lakhmir Singh Science Class 8 Solutions Chapter 12 Friction
June 10, 2019 by Sastry CBSE
S Chand Science Class 8 Solutions Chapter 12 Friction
Lakhmir Singh Science Class 8 Chapter 12 Very Short Answer Type Questions
Question 1.
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