Question

Mona weighs 750 N on Earth . On the planet Mars the force of gravity is 38% of that of Earth. How much does Mona weigh on Mars?

Answer 1

Mars, the fourth planet from the sun, is the solar system's second smallest planet, with only Mercury being smaller. Mars is roughly half the area of Earth (53%) but has the same amount of dry land as Earth because it is a desert planet. On Mars, your weight is 38 percent of what it would be on Earth, We use this concept here.

Complete step by step answer:
Mars, as well as its reddish colour, can be seen with the naked eye from Earth. It has an apparent magnitude of 2.94, which is only exceeded by Venus, the Moon, and the Sun. Because of Earth's atmosphere, optical ground-based telescopes are generally limited to discerning objects approximately 300 kilometres (190 miles) across when Earth and Mars are closest. Mars is not spherical, despite its appearance. The equator bulges when the globe revolves on its axis (every 24.6 hours) (as do Earth and other planets). Mars has a diameter of 4,222 miles (6,794 km) at its equator, although it is 4,196 miles from pole to pole (6,752 km). Mars' radius is half the planet's diameter, of course. Mars has a mass of $6.42{\text{ }} \times {10^{23}}{\text{ }}kg$, which is roughly ten times that of Earth. This has an impact on gravity. Because Mars' gravity is 38% that of Earth's, a 100-pound individual on Earth would weigh 38 pounds on Mars.
Weight on Mars = Weight on Earth $\times$ 38%
Weight on Mars = 750 $\times$ $\dfrac{38}{{100}}$
Weight on Mars = 285 N

Note: Mars Express, a mission of the European Space Agency, discovered an ultraviolet glow originating from "magnetic umbrellas" in the Southern Hemisphere in 1994. There is no global magnetic field on Mars to direct charged particles into the atmosphere. The Southern Hemisphere of Mars features numerous umbrella-shaped magnetic fields that are relics of a global field that dissipated billions of years ago.