NCERT Example 4.2 - Laws of Motion
Question: A bullet of mass 0.04 kg moving at 90 m s^-1 enters a heavy wooden block and stops after 60 cm. Find the average resistive force exerted by the block.
Answer: The average resistive force has magnitude **270 N**, opposite to the bullet's motion.
Full step-by-step NCERT solution with diagrams on Something by Zero.