Ahot-air balloon is rising upward with a constant speed of 2.51 m/s. when the balloon is 3.16 m above the ground, the balloonist accidentally drops a compass over the side of the balloon. how much time elapses before the compass hits the ground

  t = 1.099 s

Explanation:

given,

constant speed = 2.51 m/s

height of balloon above ground = 3.16 m

time elapsed before it hit the ground = ?

Applying equation of motion to the compass

using quadratic formula to solve the equation

  t = 1.099 s, -0.586 s

hence, the time elapses before the compass hit the ground is equal to 1.099 s.

i am pretty sure it is c because when people are closer together, they cannot move as freely. picture being in a mostly full elevator, for instance. the people are right next to you, and you can barely move.