Questions
A wooden box is placed on a table. The normal force on the box from the table is N1. Now another identical box is kept on first box and the normal force on lower block due to upper block is N2 and normal force on lower block by the table is N3. For this situation, mark out the correct statement(s).
detailed solution
Correct option is C
Let the weight of each block be W (see figure) So, N1=N2=N32Talk to our academic expert!
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Natural length of the spring is 40 cm and its spring constant is 4000 N m-1. A mass of 20 kg is hung from it. The extension produced in the spring is (Given g = 9.8 m s-2)
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