Question

a book of mass 5 kg is placed on a table and it is pressed by 10 Newton force then normal force exerted by table on the book is

Answer 1

Here is your answer 
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=> mass of book=5kg


Then force exerted by earth on book= mg=5×9.8=49 N


           => The external force exerted on book = 10 


By Newton's third law of motion,

we get,


Force exerted by the table on the book
= mg+10=49+10=59N