JEE Main Physics question
A rod of length L and weight W is kept horizontally on a support. A small weight w is hung at one end (the far end, at distance L from the other end). If the system balances when the support (fulcrum) is placed at distance x from that other end, then
Answer: (D)
Solution
Balancing a rigid rod on a single support means placing the support exactly at the combined centre of mass of the rod's own weight (acting at
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