Imagine another planet, planet X, that has 1/8th the mass of the Earth and has half the radius (it's the same density as Earth). If a 100 lb person went to visit, how much would they weigh, remembering that
force = G m_planetm_person / R_planet²

    A ) 12.5 lbs
    B) 50 lbs
    C) 100 lbs
    D) 400 lbs

When called for, hold up the letter of your choice.