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Question of today -
Describe an activity to study the action and reaction forces acting on two objects .
Answers
:- To show the action and reaction forces on two different objects
:- Test tube , Rubber cork cap,Bunsen burned , laboratory stand ,thread
:-
1.Take a test tube and put a small amount of water in it.
2.Place a rubber cork cap at its mouth to close it
3.Now suspend the test tube horizontally to a stand with the help of two strings
4.Heat the test tube with a Bunsen burner until water vapourizes and the rubber cork blows out.
:-
•When the cork cap blows out in forward direction ,the test tube recoils back .
•We observe velocities of cork cap and recoil of test tube to be same.
Answer:
To begin, forces always act in pairs and always act in opposite directions. When you push on an object, the object pushes back with an equal force. Think of a pile of books on a table. The weight of the books exerts a downward force on the table. This is the action force. The table exerts an equal upward force on the books. This is the reaction force. Note that the two forces act on different objects. The action force acts on the table, and the reaction force acts on the books
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