Question
In the absence of air resistance two balls are thrown upward from the same launch point. Ball A rises to a maximum height above the launch point that is four times greater than that of ball B. The launch speed of ball A is _______ times greater than that of ball B.
a)2 b)4 c)8 d)16
I realize that the velocity of either ball at the top of its flight is v= 0 m/s, but do not know which kinematic equation relates maximum height and launch speed. Any help on this would be great thanks!
a)2 b)4 c)8 d)16
I realize that the velocity of either ball at the top of its flight is v= 0 m/s, but do not know which kinematic equation relates maximum height and launch speed. Any help on this would be great thanks!
Answers
drwls
The maximum height achieved is proportional to the initial kinetic energy, which is proportional to V^2.
What do you have to do to V in order to increase V^2 by a factor of 4?
What do you have to do to V in order to increase V^2 by a factor of 4?
brantley
I still do not understand what do you mean by initial kinetic energy? what equations are proportionate to each other I do not understand what you are trying to say
juice
b)4