If a proton is released at the equator and falls toward earth under the influence of gravity, the magnetic force on the proton will be toward the assuming the magnetic field is directed toward the north at this location.

Abus travels 280km south along a straight path with an average velocity of 88km/h to the south. the bus stops for 24 min, then it travels 210 km south with an average velocity of 75 km/h to the south. how long does the total trip last?