Ganymede, one of Jupiter's moons, has a gravitational force of only 0.146 that of Earth. If a space probe with a mass of 126 kg on Earth lands on Ganymede, what would its mass be

The mass of the space probe on Ganymede is 126 kg, and its weight is 180.2808 N.

Explanation:

The force of gravity, g, on the earth is 9.8 m/.

The gravitational force on Ganymede = 0.146 × g

                                                               = 0.146 × 9.8

                                                               = 1.4308 m/

The gravitational force on Ganymede is 1.4308 m/.

Mass of space probe on Earth is 126 kg.

Weight of the space probe on Earth = m × g

                                                = 126 × 9.8

                                                = 1234.8 kgm/

Weight of the space probe on Earth is 1234.8 N.

Since mass is constant, the mass of the space probe on Ganymede is 126 kg.

Weight of the space probe on Ganymede = m × g

                                                     = 126 × 1.4308

                                                    = 180.2808 kgm/

Weight of the space probe on Ganymede is 180.2808 N.