OpenStudy (janaelovexoxo):
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/second^2 A. 11.2 seconds B. 12.1 seconds C. 13.3 seconds D. 13.5 seconds E. 14.2 seconds
OpenStudy (killemall):
The equations starting from acceleration and taking the anti-derivative until you have position are shown below: \[\textrm{a} =-9.8~ m/s^2 \] \[\textrm{v} =-9.8t - 10 \] where the -10 is the initial velocity in the downward direction \[x(t) = \frac{ 1 }{ 2 } (-9.8) t^2 - 10t + 1000 \] where +1000 is the initial position you want to find the position at 0, so you solve the quadratic equation \[0 = \frac{ 1 }{ 2 } (-9.8) t^2 - 10t + 1000 \] t=13.3
Join our real-time social learning platform and learn together with your friends!
penguin:
You don't mean what you say and don't mean what you do You don't mean anything be
unknownnnnnn:
Bored Enough to Stop Wanting..... Iu2019m not sad in a dramatic way. No storms, no shattered rooms.
penguin:
Running, running far away. Escaping dreams of yesterday. Faster, faster there I go.
penguin:
The hardest thing I'll ever do Is let go of you And look forward instead of back at my past.
penguin:
The hardest thing I'll ever do Is let go of you And look forward instead of back at my past.
penguin:
The hardest thing I'll ever do Is let go of you And look forward instead of back at my past.
seeker:
I once believed that if you exist, then grace itself exists, if you remain in my thoughts, what power has sorrow or poison over me? From your face, all the
unknownnnnnn:
The Space Between Breaths... Night doesnu2019t rush me. It waits. Like it knows Iu2019ll eventually start thinking about everything I almost said and the th
676767:
If words could paint the blush I feel inside, I'd write a sonnet just to tell you trueu2014 How every glance you cast, each smile you hide, Ignites a secret