Maths Group11
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The main purposes of this channel are to: 1. 📝 Provide various Mathematics questions and exercises. 2. 📚 Share and publish different educational books. 3. 📖 Provide useful short notes and study materials. For more, contact us through: @Fikiru_Asnake
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5 114
A 200N force is required to be applied at one end of 1m long lever. If the distance from the effort to fulcrum is 80cm, inorder to lift a load of 600N placed at the other end. What is the efficiency of the lever?
5 114
If the efficiency of one machine is 100%, then which one of the following is not true?
5 114
Which one of the following statement is true about simple machines?
5 114
Which one of the following statement is true about the classes of lever in simple machines?
5 114
If an inclined plane of 4m length and 1m height has an efficiency of 0.5, what is its mechanical advantage?
5 114
A screw shaft has a diameter of 4cm and its adjacent threads are 0.314cm apart. What is the velocity ratio of the screw?
5 114
A 10cm long and 2cm wide metal wedge is used to split a wood. What is the velocity ratio of the wedge?
5 114
An effort is 200N is applied on to a wedge of 4cm thick and 12cm long to split a log of 500N into parts. Then what is the efficiency of the wedge?
5 114
A simple machine has an efficiency of 0.75 and velocity ratio 12. Then what is the load that can be moved if an effort of 100N is applied?
5 114
A simple machine is able to move a 400N load a distance of 20cm when a force of 20N is moved the distance of 5m, then what is the actual mechanical advantage and the efficiency of the machine ?
5 114
Which one of the following statement is not true about the purposes of simple machines?
5 114
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