If you simply release an object, the initial velocity is always zero.
The initial velocity is 0 ms-1.
No a water balloon dropped from 1 foot
Ignoring any effects due to air resistance, the speed of the stone is zero at the instant it's dropped, and increases steadily to 78.98 meters per second when it hits the ground. The velocity is directed downward throughout the experiment.
6 feet
1 foot
they hit the ground at same instant
Through the course of the night, some of the air (or helium or other gas) inside the balloon slowly leaked out. Also, it is very likely that the temperature of the balloon dropped by at least a few degrees. The combination of those two factors reduced the pressure inside the balloon, allowing the rubber or plastic or other material of the balloon to contract, making it shrivel up.
Diving is generally taken to mean that you start from rest and jump. If Superboy dives off the building, he would initially have had zero velocity, relative to the building.
29.4
The initial velocity of a dropped ball is zero in the y (up-down) direction. After it is dropped gravity causes an acceleration, which causes the velocity to increase. F = ma, The acceleration due to gravity creates a force on the mass of the ball.
j
I think its the dropping of a golf ball off a building! This is because the formula for velocity when something is dropped is a quadratic formula, that is of degree 2.
194fps