if a book weights 30N how much force must be applied in order to prevent it from falling? Also
mention the direction in which you apply the force
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Answer:
same force must be applied i.e 30N
Explanation:
According to Newton's 3rd law of motion:to every action there is an equal but opposite reaction .So the force equal to the weight of the book will be applied . the direction of the force must be opposite to the directtion of motion o the book.
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