Q 20 Moderate 0 75 4 1 00 23 O 000 A bullet of mass 0 02 kg

Last updated: 6/7/2023

Q 20 Moderate 0 75 4 1 00 23 O 000 A bullet of mass 0 02 kg travelling horizontally with velocity 250 ms strikes a block of wood of mass 0 23 kg which rests on a rough horizontal surface After the impact the block and bullet move together and come to rest after travelling a distance of 40m The coefficient of sliding friction of the rough surface is q 9 8ms