## anonymous one year ago A ball is released from a hot air balloon moving downward with a velocity of -10.0 meters/second and a height of 1,000 meters. How long did it take the ball to reach the surface of Earth? Given: g = -9.8 meters/second2.

• This Question is Open
1. imqwerty

so initial velocity of ball=initial velocity of balloon =-10m/s acceleration=-9.8m/s^2 distance=1000m apply $s=ut+\frac{ 1 }{ 2 }at^2$ s=distance u-initial velocity a=acceleration t=time plug them in and u'll get a quadratic in t solve it to get t