Desde el fondo de un pozo de 15 m de profundidad lanzamos un objeto hacia arriba con una velocidad de 32 m/s. Calcula a qué altura, en metros, estará sobre la superficie del suelo cuando se mueve a 9 m/s

Jason is a body builder. despite being more fit, he weighs more than his brother ryan, who is the same height. which is a possible reason? a. jason has more muscle mass than ryan does. b. jason has more body fat than ryan does. c. jason has more muscle mass and body fat than ryan does d. jason has less body fat than ryan does.

When you jump from an elevated position you usually bend your knees upon reaching the ground. by doing this, you make the time of the impact about 10 times as great as for a stiff-legged landing. in this way the average force your body experiences is a) less than 1/10 as great. b) more than 1/10 as great. c) about 1/10 as great. d) about 10 times as great.

The law of the conservation of momentum says that the total momentum of any closed and isolated system cannot