HEY BESTIE! We should go to the park and play catch!
One generic day after school in Fenelon Falls, Ontario...
OH YEA... cuz there's nothing better we could be doing.
Sure. Why not?
Before we start, we should use kinematics to figure out what distance you should stand at to catch my throw!
10 minutes later... at the park...
Alrighty. Sounds scientific-ish.
To do that we'll need to find the speed you throw at first. For that you have to throw the ball, and i will measure the distance it goes and how long it takes to hit the ground. Then we can simply use the d=v/t equation to determine your throwing speed.
Oh crap... I think I threw a little too hard.
You don't say...
Oy Vey... At least it was a constant speed you threw at. let's go look for that stupid ball.
Wait... speed is a scalar , and velocity is a vector, right?
Look, there's the ball over there. Holy, you threw it a total of 200 meters!
Yes it is. Now be quiet, you'll attract and animal or something.
*Rustle rustle, sniff sniff*
Uhh, cool. Can we get out of this forest? There's something in the bushes. Let's go.
Soo, if the time it took to hit the ground out here was 8 seconds and the distance was 200m then V=200/8. So you threw at a speed of 25m/s.
Ok. That's a plan. Lets go home, I give up on catch.
Next time you want to trick me into doing physics lets just go watch cars or something. We can calculate their acceleration or something using the equations D= V1t+1/2at2 or V2 = V 1 + at.