An aircraft flying from mackay, australia, has an air speed of 268 m/s in a direction 5.0° south of west. it is in the jet stream, which is blowing at 39 m/s in a direction 15° south of east. in this problem you are going to be asked about the velocity of the airplane relative to the earth.
i don't understand. explain it clearly
when two balls of the different masses are dropped from equal height, they reach the ground at the same time .this is because they experience the same acceleration.
the acceleration is independent of mass.
thus when they are dropped they will always maintain the same velocity and travel the same distance (neglect air resistance of course) at the same time.
it is a negative acceleration
a skateboard rolling across the street - apex