In explaining this. dont understand at all

For the first minute, the rocket is traveling straight upward at a constant velocity of 600 m/s. This means that after 1 minute (60 seconds), it will have risen to an altitude of

From this point on, it's in freefall with a starting height of 36000 m, a starting velocity of 600 m/s upward, and accelerating downward with a magnitude of 1g. At its maximum height, the rocket's velocity will be 0. We have a formula that ties all this information together:

(rounding to 2 significant digits)

The altitude of the rocket with respect to time (AFTER the first minute) is given by

The time it takes for the rocket to reach the ground () is given by

which means the rocket will have spent a TOTAL time of 226.56 seconds, or approximately 230 seconds, in the air.

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explanation:

physics means: "the branch of science concerned with the nature and properties of matter and energy. the subject matter of physics, distinguished from that of chemistry and biology, includes mechanics, heat, light and other radiation, sound, electricity, magnetism, and the structure of atoms."