A chipmunk drops an acorn from a branch 6.0 m above the ground. a) How long is it in the air? b)How fast is it going when it hits the ground? I decided my given was a=9.8m/s2 d= 6.0 m vi= 0 m/s So I used the distance formula (d=vi+1/2*a*t2) and solved for time. I got about 1.1 s. For the next part I used vf=vi*t+a*t and solved. I got a)1.1 seconds b) 10.78 m/s Is this correct?