Un cuerpo es lanzando verticalmente hacía arriba con una velocidad inicial de 30 m/s donde se desprecia la resistencia del aire ¿Cuál será la velocidad del cuerpo 2 segundos después de su lanzamiento?

¿Cuánto tarda el cuerpo en llegar al punto más alto de su trayectoria?

¿Cuál es la altura máxima alcanzada por el cuerpo?​

Many machines- including inclined planes such as ramps- increase the strength of the force put into the machine but decrease the distance over which the force is applied. true or false

This problem has been solved! see the answera non-uniform fire escape ladder is 6.0m long whenextended to the icy alley below. it is held at the top by africtionless pivot, and there is neglibible frictional force fromthe icy surface at the bottom. the ladder weighs 250n, and it'scenter of gravity is 2.0m along the ladder from the bottom. amother and child of total weight 750n are on the ladder 1.5m fromthe pivot. the ladder makes an angle θ with the horizontal.find the magnitude and direction ofa) the force exerted by the icy alley on the ladderb) the force exerted by the ladder on the pivotc) do your answers in part a and b depend on the angle?

Ms.hidalgo opens the door to her classroom. her classroom is 60 degrees and the air outside is 80. predict what will happen using your knowledge of how heat flows.