Which of the following activities is easier to perform on a drum of 10...
Rolling friction is much less than sliding friction. So, rolling a drum is easier.
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Which of the following activities is easier to perform on a drum of 10...
Understanding the Activities
To determine which activity is easier to perform with a 10 kg drum, we need to analyze the mechanics involved in each option: dragging, lifting, and rolling.
1. Dragging the Drum
- Requires constant force to overcome friction between the drum and the ground.
- The effort can be significant depending on the surface texture.
- Not efficient for long distances as it can cause fatigue.
2. Lifting the Drum
- Directly opposes gravity, requiring a considerable amount of energy.
- The effort needed is proportional to the weight (10 kg) and can strain muscles, especially without proper technique.
- Not practical for most individuals, especially over longer distances or heights.
3. Rolling the Drum
- Utilizes the principle of rolling motion, which significantly reduces friction.
- The force required to roll the drum is far less than dragging or lifting.
- Momentum can be maintained once the drum is set in motion, making it easier to move over distances.
Conclusion: Why Rolling is Easier
- Rolling minimizes friction and uses gravity to assist in movement, making it the most efficient method.
- The energy expenditure is lower compared to lifting or dragging, especially over longer distances.
- Thus, rolling the drum is the easiest activity among the options provided.
In summary, when considering the physics of movement, rolling a 10 kg drum is the most efficient and least strenuous option.
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