Aperson fires a 38 gram bullet straight up into the air. it rises, then falls straight back down, striking the ground with a speed of 345 m/s. the bullet embeds itself into the ground a distance of 8.9 cm before coming to a stop. what force does the ground exert on the bullet? express your answer in newtons.

Alarge cruise ship of mass 7.00 ✕ 107 kg has a speed of 11.6 m/s at some instant. (a) what is the ship's kinetic energy at this time? (b) how much work is required to stop it? (give the work done on the ship. include the sign of the value in your answer.) (c) what is the magnitude of the constant force required to stop it as it undergoes a displacement of 3.00 km?