Of all the planets in our solar system, Jupiter has the greatest gravitational strength. a. If a 0.500-kilogram pair of running shoes would weigh 11.55 newtons on Jupiter, what is the strength of gravity there? b. If the same pair of shoes weighs 0.3 newtons on Pluto (a dwarf planet), what is the strength of gravity there? c. What does the pair of shoes weigh on Earth? 4. A tractor-trailer truck carrying boxes of toy rubber ducks stops at a weigh station on the highway.