Un avión, cuando toca pista, acciona todos los sistemas de frenado, que le generan una desaceleración de 5 m/s2. Si necesita 100 metros de recorrido para frenar por completo, ¿con qué
velocidad venía el avión antes de tocar pista y frenar? ¿Cuánto tiempo duró el proceso de frenado?

Astone dropped into a well is heard to strike the water after 8seconds. find the depth of the well if the velocity of sound is 350m/s

The great sandini is a 60.0-kg circus performer who is shot from a cannon (actually a spring gun). you don’t find many men of his caliber, so you him design a new gun. this new gun has a very large spring with a very small mass and a force constant of 1100 n/m that he will compress with a force of 4400 n. the inside of the gun barrel is coated with teflon, so the average friction force will be only 40.0 n during the 4.00 m he moves in the barrel. at what speed will he emerge from the end of the barrel, 2.50 m above his initial rest position?

The amount of work done is determined by 2 factors. describe an example of work (using the scientific definition) list the 2 factors that determine the amount of work done.