Gravity on earth is 9.8 m/s^2, and gravity on jupiter is 23.1 m/s^2. so, if the mass of a rock is 70 kilograms, it's weight on earth and its weight on jupiter ?

686 N, 1617 N

Explanation:

Gravity on earth, ge = 9.8 m/s^2

Gravity on Jupiter, gj = 23.1 m/s^2

m = 70 kg

Weight on earth, We = m x ge = 70 x 9.8 = 686 N

Weight on Jupiter, Wj = m x gj = 70 x 23.1 = 1617 N