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fgiga [73]
3 years ago
14

Stand up and hold a book or other object in your hand. Flex your bicep muscle and lift up the lower part of the arm that is hold

ing the object. Next, pretend you are kicking a ball by making a kicking motion with your leg. Finally, sit on the edge of your chair and bring both legs up and hold them parallel to the floor and then bend them back down again.
What type of simple machine is demonstrated by each of these activities?

It is only one. The lever. I was really confused when it broke it down in class systems.
Health
2 answers:
sasho [114]3 years ago
7 0
Stand up and hold a book or other object in your hand. Flex your bicep muscle and lift up the lower part of the arm that is holding the object. --> lever

Next, pretend you are kicking a ball by making a kicking motion with your leg. --> lever

Finally, sit on the edge of your chair and bring both legs up and hold them parallel to the floor and then bend them back down again. --> lever
Studentka2010 [4]3 years ago
7 0

to add- they are all third class levers.

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