 #1
 55
 3
Homework Statement:
 attached below
Relevant Equations:

final velocity=initial velocity + accelerationxtime
distance=((initial velocity+final velocity)/2)x time
I first calculated the velocity v:
√2.8^2+6.3^2= 6.8942
then i used it as the final velocity, so final velocity=6.8942
and the initial velocity=0
acceleration=9.8
Then i substituted them into this equation:
final velocity=initial velocity + accelerationxtime
then time=0.703489843
hence i substituted all values into this equation:
distance= ((initial velocity+final velocity)/2) x time
so, distance=2.42499
but the answer is not correct...I wonder what's wrong T.T