Dos pelotas de básquetbol las dejan caer de dos alturas diferentes y deben caer en un mismo punto. Si la pelota 1 está a 6 M de altura y su velocidad de 15 m/s ¿con que velocidad debe empujarse la bola 2 si está a una altura de 2 m según la figura

Will mark as brainliest how does a catapult increase the trajectory of an object? ps. answer as if u were a 5th grader

Asled is being held at rest on a slope that makes an angle θ with the horizontal. after the sled is released, it slidesa distance d1 down the slope and then covers the distance d2 alongthe horizontal terrain before stopping. find the coefficient ofkinetic friction μk between the sled and the ground, assumingthat it is constant throughout the trip. find the coefficient of kinetic frictionμk. express your answer in terms of someor all of the variables d1, d2, and θ.

Engines for propeller-driven aircraft are limited in their maximum rotational speed by the fact that the tip speed of the propeller must not approach the speed of sound in air (mach i). taking 6 ft as a typical diameter for a propeller of a light airplane and 1100 fils as the speed of sound, find the upper limit on the rpm (revolutions per minute) of the propeller shaft.