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/sci/ - Science & Math

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1715304 No.1715304 [Reply] [Original]

So /sci/ im taking physics in highschool right now and i really suck at math. for a lab we had to throw a ball up in the air and record the time it was in the air and using that we have to find how high it was at it's peak. for me it was in the air for 2.93 seconds.
the second part of the lab we had to throw it at a 45 degree angle and by recording the distance it landed at, find the initial velocity. i threw it 36.7 m
any help would be much appreciated or a link to a website that tells how to do it.
pic unrelated

>> No.1715318

>>1715304
>only managed to throw the ball 36.7m
Haha what a fucking nerd, I hope you're good at physics because you'll never be good at anything else.

>> No.1715325

>>1715318
Not OP, but throwing a ball as hard as you can would be really hard to get an accurate 45 degree angle going on, not to mention the fact that it would just be unneccesary effort to have to walk all the way back to it to retrieve the ball

>> No.1715329

>>1715318
that's more than a football field. that's pretty damn far.

>> No.1715341
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1715341

>>1715329
>36.7 meters
>further than a football field

>> No.1715344

>>1715329
>40 yards
>longer than a football field
>40 > 120

herp

>> No.1715378

didn't throw as hard as i could because we tried to get as close to 45 degrees as possible. yeah, its not gonna be exact but as close as we could get.
also there were markers on the field and people at the other end to yell back how far it went

>>1715318 pretty sure not being able to throw a ball far doesnt mean im never gonna be good at anything. it just means i was never on a football or baseball team.

>> No.1715386

>>1715304
doesnotcompute.exe

how the fuck could you throw a ball 36.7 meters in a laboratory? thats really far. how big is your laboratory!?

velocity is distance over time. you have the initial time, so you just need the initial distance. hmmm lemme think about this op

>> No.1715402

>>1715386
we were out on a football field not a lab.
those were two different parts of the lab. we were not allowed to figure out the time when we threw it at 45 degrees. and we were throwing it straight up when we were allowed to record the time.

>> No.1715405

>>1715304
Tomorrow is the deadline for applications for fellowships at CERN. I hope they take me this time ;_;

>> No.1715450

bump

>> No.1715528

>>1715304
its easy, its simply the second distance over initial time.
the distances are the same because its a 45 degree angle. if you decompose the velocity vector of the second experiment you would get two equal components, both of which are exactly equal to one another. so draw that, and then just calculate the velocity.
amirite?

>> No.1715537

>>1715528
>implying the ball reached the same maximum height in both trials.