It is easier to roll a wooden cylindrical barrel instead of pulling it because the friction force of rolling state is much less than the friction force of sliding state. Rolling reduces friction compared to sliding, making it easier to ...
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Walking on snow is more difficult than walking on the road because there is less friction in snow than on the road. The uneven surface and lower friction of snow make it harder to gain traction and maintain stability while ...
Cleaning a carpet by beating it with a stick follows the third law of motion. When the stick strikes the carpet, it exerts a force on it, and the carpet exerts an equal and opposite reaction force on the stick, ...
For a steel boat floating in a lake, the weight of water displaced by the boat is equal to the weight of that part of the boat which is below the surface of the water of the lake.
When the temperature is dropped from 9°C to 3°C, the volume of water will decrease. Water exhibits anomalous behavior near 4°C, where it contracts upon cooling until it reaches 4°C, then expands upon further cooling. Therefore, the volume will first ...