The problem that follow involve straight-line motion. The time t is in seconds unless othe...

The problem that follow involve straight-line motion. The time t is in seconds unless otherwise stated.

Problem

The moon’s radius is 1738 km. The magnitude of the acceleration due to gravity of the moon at a distance s from the center of the moon is

Suppose that a spacecraft is launched straight up from the moon's surface with a velocity of 2000 m/s.

(a) What will the magnitude of its velocity be when it is 1000 km above the surface of the moon?

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(b) What maximum height above the moon’s surface will it reach?