JEE Main 2014 Physics question
A bullet of mass 4 g is fired horizontally with a speed of 300 m/s into 0.8 kg block of wood at rest on a table. If the coefficient of friction between the block and the table is 0.3, how far will the block slide approximately?
Answer: (2)
Solution
The bullet embeds, so momentum is conserved: m/s. The block then decelerates
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