A bullet moving with the velocity 6m/s enters a wooden block of thickness 12cm and comes out with a speed of 5m/s. the average retardation of the bullet is??????????
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Refer the below attachment use Microsoft word software to open 1st file. If you don't have Microsoft word use Adobe reader to open the 2nd file. If you don't have both you can open third file windows photo viewer which is built in software in all windows.
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