The aircraft is flying at 165 km/h due east as the air crew drops the 100. kg crate. The parachute fails to open and the crate crashes to the ground 4.5 s after it was released. a. What is the crate’s vertical speed just before it hits the ground?
b. How high was the plane when the container was released?
c. The plane was 0.5 km west of a lake when it released the
crate. Did the crate land in the lake?

On a horizontal frictionless surface, a small block with mass 0.200 kg has a collision with a block of mass 0.400 kg. immediately after the collision, the 0.200 kg block is moving at 12.0 m/s in the direction 30° north of east and the 0.400 kg block is moving at 11.2 m/s in the direction 53.1° south of east. use coordinates where the +x-axis is east and the +y-axis is north.(a) what is the total kinetic energy of the two blocks after the collision (in ) what is the x-component of the total momentum of the two blocks after the collision? (indicate the direction with the sign of your ) what is the y-component of the total momentum of the two blocks after the collision? (indicate the direction with the sign of your answer.)