Josephus has a mass of 80 kg on Earth Dazzeler has a weight

Josephus has a mass of 80 kg on Earth. Dazzeler has a weight of 20 N on Neptune. The acceleration of gravity on Neptune is 11.15 m/s^2. a) What would Josephus\'s mass and weight be on Neptune? b) What would Dazzeler\'s mass and weight be on Earth?

Solution

Mass of josephus m = 80 kg

Dazzeler weight on Neptune W = 20 N

The acceleration of gravity on Neptune g \' = 11.15 m/s²

a) Josephus\'s mass on Neptune m \' = m = 80 kg

weight of josephus on Neptune W \' = m \' g \'

= 80x11.15

                                                    = 892 N

b) Dazzelers mass on Neptune M \' = W / g \'

                                                     = 20 / 11.15

                                                     = 1.793 kg

Dazzeler\'s mass on earth = 1.793 kg

weight of Dazzeler\'s on Earth = mg       where g = accleration due to gravity = 9.8m/s ²

                                            = 1.793 x9.8

                                             = 17.57 N