Class 8 Exam > Class 8 Questions > Why are tyres made circular in shape?a)It is ...
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Why are tyres made circular in shape?
- a)It is easy to inflate circular tyres.
- b)Rolling friction is less than sliding friction.
- c)Circular tyres dissipate less heat.
- d)Circular tyres easily slow down or stop a vehicle.
Correct answer is option 'B'. Can you explain this answer?
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Why are tyres made circular in shape?a)It is easy to inflate circular ...
Since, rolling friction is less than sliding friction, the tyres are made circular instead of flat.
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Why are tyres made circular in shape?a)It is easy to inflate circular ...
Rolling friction is less than sliding friction
- The primary reason why tyres are made circular in shape is to reduce friction between the tyre and the surface it is rolling on.
- When a vehicle is in motion, the tyres are constantly rolling and coming in contact with the road. If the tyres were to be square or any other shape, there would be more surface area in contact with the road, resulting in higher friction.
- Circular tyres have a smaller contact area with the road compared to square or irregularly shaped tyres. This smaller contact area reduces the friction between the tyre and the road, making it easier for the vehicle to move forward.
- This reduced friction is known as rolling friction, which is much lower than the sliding friction that would occur if the tyres were not circular in shape.
- Therefore, by making tyres circular, manufacturers are able to minimize the energy loss due to friction, making the vehicle more fuel-efficient and easier to drive.
- The primary reason why tyres are made circular in shape is to reduce friction between the tyre and the surface it is rolling on.
- When a vehicle is in motion, the tyres are constantly rolling and coming in contact with the road. If the tyres were to be square or any other shape, there would be more surface area in contact with the road, resulting in higher friction.
- Circular tyres have a smaller contact area with the road compared to square or irregularly shaped tyres. This smaller contact area reduces the friction between the tyre and the road, making it easier for the vehicle to move forward.
- This reduced friction is known as rolling friction, which is much lower than the sliding friction that would occur if the tyres were not circular in shape.
- Therefore, by making tyres circular, manufacturers are able to minimize the energy loss due to friction, making the vehicle more fuel-efficient and easier to drive.
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Why are tyres made circular in shape?a)It is easy to inflate circular tyres.b)Rolling friction is less than sliding friction.c)Circular tyres dissipate less heat.d)Circular tyres easily slow down or stop a vehicle.Correct answer is option 'B'. Can you explain this answer?
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