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4 Articles Tagged as: Mechanical advantage
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Questions
Pathshala Nepal
3 years ago Grade - 8 (BLE) Physics Simple Machine

Why is VR always greater than MA in a simple machine?

The velocity ratio (VR) is always greater than mechanical advantage (MA) in a simple machine. Why?

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Pathshala Nepal
3 years ago Grade - 8 (BLE) Physics Simple Machine

It is easier to lift a load when it is shifted towards the wheel in a wheelbarrow. Why?

It is easier to lift a load when it is shifted towards the wheel in a wheelbarrow. Why?

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Pathshala Nepal
3 years ago Grade - 8 (BLE) Physics Simple Machine

Why is the value of MA in the third class lever always less than one?

The value of mechanical advantage (MA) in the third class lever is always less than one. Why?

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Pathshala Nepal
3 years ago Grade - 8 (BLE) Physics Simple Machine

In a lever, 120 N load is attached at a distance of 20 cm from the fulcrum. If this effort is used to lift 50 kg weight then, find

In a lever, 120 N load is attached at a distance of 20 cm from the fulcrum. If this effort is used to lift 50 kg weight then, find

  1. Load distance (LD)
  2. Mechanical advantage (MA)
  3. Velocity ratio (VR)
  4. Efficiency (η)

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