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31 March, 13:33

The bodies of birds are streamlined. Why.

When we strike a matchstick with a rough surface it catches fire. why

Grooves are made in tyres. why

Discuss how friction plays a vital role in daily life.

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  1. 31 March, 15:32
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    1. For better aerodynamics and easier air flow while flying.

    2. Because we generate friction that lights a match

    4. Without friction we couldnt walk (we would slip around like on ice), cars wouldnt stick on road while driving.

    3. Grooves in the tyres are designed to allow water to be expelled from beneath the tire and prevent hydroplaning.
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