Se lanza verticalmente hacia arriba una piedra con una velocidad de 125km/h. calcular:
a.- la distancia que recorre a los 3segundos
b.- su velocidad a los 2segundos
c.- su altura máxima
d.- el tiempo que tarda en el aire
por favor necesito el procedimiento completo, gracias.

How is acceleration calculated? a. initial velocity - final velocity / timeb. initial velocity + final velocity / timec. final velocity - initial velocity / timed. final velocity / timele select the best answer from the choices provided0oood00save and exitnextmark this and return

Polly is pushing a box across the floor with a force of 30 n. the force of gravity is –8 n, and the normal force is 8 n. which value could describe the force of friction if polly could not move the box?

Does anyone know how to solve this problem? i really need . i made an attempt but i just cant get it. a metal rod is 25.000 cm long at 25.0 degrees celsius. when heated to 102.0 degrees celsius, it is 25.054 cm long. what is the coefficient of linear expansion for this metal.