Answer: 
Explanation: The time taken by the object to reach the ground depends up on the vertical velocity of the object.
The object horizontal velocity component only moves the object in forward direction and does not have any effect vertically
as the object is launched horizontally its initial vertical velocity is zero
the object experiences downward fall due to gravitational acceleration only since there is no air resistance
therefore a=g
the distance covered =s=h
now the kinematic equation could be used
I want to say frequencies would be the answer. I could be wrong though. Hope this may have helped!
Isn't a hypothesis making a theory? Based on that I guess the answer would be A. Making a theory, because you making the hypothesis is not part of testing it.
Answer:
If your form is correct (b)
Answer:
A.The vertical velocity is constantly increasing as the ball falls.
B.The horizontal velocity does not noticeably change as the ball falls.
G.The horizontal velocity does not affect how long it will take the ball to fall to the floor.
H.The velocity vector of the ball changes as it travels through the air.
Explanation:
As the ball is projected horizontally so here the vertical component of the velocity is zero
So the time to reach the ground is given as
so we will have
so this is the same time as the ball is dropped from H height
Since there is no force in horizontal direction so its horizontal velocity will always remain constant while vertical velocity will change at constant rate which is equal to acceleration due to gravity.
So overall the velocity vector will change due to net acceleration g
