The gravitational force on Jupiter is approximately 2.3 times the gravitational force on Earth. If an object has a mass of 70 kg and a weight of 686 N on Earth, what would the object's mass and weight on Jupiter be?

1 Answer
Jan 31, 2016

There is no change in mass. Therefore, mass = #70kg#
Weight on Jupiter #approx1578N#

Explanation:

Mass does not change when the object is taken from earth to Jupiter, Law of Conservation of Energy.

Weight on earth #w_E=mg_E#, where #m# is object mass and #g_E# acceleration due to gravity on earth, #"9.81 m/s"^2"#.

#w_E=F_E=70 kgxx9.8"m/s"^2"="686 N"#

Also given that gravitational force on Jupiter #F_Japprox2.3xx F_E#

Now weight on earth is #F_E# itself
#implies F_Japprox2.3xx 686N#
#implies F_Japprox1578N#