physics8ater

A ballistic pendulum consists of a 1.25-kg block of wood that is hanging from the ceiling in such a way that when a bullet enters it, the block’s change in height can be recorded as it swings. A bullet having a mass of 6.25-grams and unknown velocity stri...

There is motion of a straight track between two stations. Average speed: 12m/s Distance between stations: 3600m. Please help how could I find the max speed given these information? and it isn't like the average speed so it confused me

A boy jumps from a wall 3m high. What is an estimate of the change in momentum of the boy when he lands without rebounding? the answer is 5x10^2kg/ms, but how?

THANK U LOTS!

it didn't say:(