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Question

Consider a porter standing on a platform with a suitcase which presses his head with a force of 200 N. If this force is taken to be the action, from where is the reaction force exerted and to where is it directed ?

A
The head, on the suitcase
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B
The earth, on the suitcase
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C
The earth, on the porter
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D
The suitcase, on the earth
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Solution

The correct option is A The head, on the suitcase
According to Newton third law reaction force of 200N will be opposite to the direction of action and is upwards and caused by the porter from his head.
1004174_516703_ans_0b0a46e65fba4308a60a010db6f72bec.png

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