What is a snuff bullet?

A bullet is fired into a block of wood suspended by a long thread.?

• A bullet is fired into a block of wood suspended by a long thread. The bullet stops in the wooden block. The impact of the bullet makes the block swing. The velocity of the wooden block can be calculated from the distance it swings. In one such experiment the block of wood and bullet had a velocity of 2 m/s immediately after impact. The mass of the bullet was 20g and the mass of the wooden block 3.980 kg. (i) Calculate the combined mass of the block of wood and bullet. (ii) Calculate the momentum of the block of wood and bullet immediately after impact. State the momentum of the bullet immediately before impact. Calculate the velocity of the bullet before impact. (v) Calculate the kinetic energy of the block of wood and bullet immediately after impact. (c) During flight, air enters the engine at 175 m/s and leaves at 475 m/s. A forward thrust of 105 kN is produced. Use the following equation to calculate the mass of air passing through the engine every second. (Ignore the mass of the burned fuel.) force=change in momentum/time

• Answer:

  there is no bullet that has a velocity of 2 metres a second so all your calculations are compromised, sorry