The chart shows data for four moving objects.
object
change in
time (s)
initial velocity
(m/s)
11
10
final velocity
(m/s)
29
34
12
w
x
y
40
12
20
28
which object has the greatest acceleration?
w
ου
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volleyball players can not touch the net while the ball is in play

here we know that ball will drop down by total distance 3.2 m

so here we know that

now using kinematics

now in the same time it will cover horizontal distance of 0.75 m

so speed of the ball will be

current flows in a wire