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A book on a table is pushed up by the:

AMuscle force
BEngine force
CNormal force
DMagnet force
Answer & Solution
Correct answer: C. Normal force
1. Two forces act on a book lying on a table. 2. Its weight pulls it down and something balances that. 3. The table pushes up with the normal force. 4. So the answer is the normal force. _Source: syllabus Science, Ch 6 'How Forces Affect Motion'_
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