Un cohete asciende a partir de una posición de reposo con una aceleración de 29,4 m/s2 durante 4 s. El cohete se queda sin combustible al cabo de estos 4 s y continúa ascendiendo por un tiempo. Que altura alcanza por
encima de su punto de partida.

Aprojectile is launched from ground level with an initial velocity of v 0 feet per second. neglecting air resistance, its height in feet t seconds after launch is given by s equals negative 16 t squared plus v 0 t. find the time(s) that the projectile will (a) reach a height of 192 ft and (b) return to the ground when v 0equals112 feet per second. (a) find the time(s) that the projectile will reach a height of 192 ft when v 0equals112 feet per second. select the correct choice below and, if necessary, fill in the answer box to complete your choice.