2
2
an oar is a 2 class lever
A rowboat is a compound machine because it uses a combination of simple machines, such as levers for the oars and pulleys for the anchor system.
Yes, it is all three classes of lever depending on the point in the stroke. Your hands are the fulcrums and the oar is the beam.If you use oarlocks then it is a first class lever with the fulcrum in the center.If you use it as a paddle then it is a third class lever with the fulcrum as mentioned before in the hand opposite the load.
lock and key is the lever of second type
A dustpan is a 2nd class lever
Rickshaw and rowboat are means of transportation. They begin with the letter R.
A lever type can opener
3rd Class Lever
first class lever
3rd Class Lever
Yes, rowboat is a closed compound word.