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Please... Helpful physics resource[s] needed.

Buckethead31594
Posts: 363
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1/13/2012 4:04:41 PM
Posted: 4 years ago
I have a terrible time with pysics. Can anyone suggest some good sites that explain it well? I have the most trouble with scenario questions... (eg. if Jimmy dropped a ball from a 24ft building, etc...)

thanks!
"By all means, marry. If you get a good wife, you'll become happy; if you get a bad one, you'll become a philosopher." - Socrates
OMGJustinBieber
Posts: 3,484
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1/14/2012 9:24:00 AM
Posted: 4 years ago
I'm terrible at physics but I could definitely do kinematics and the situation you described. It's just a matter of getting down the variables. I used an online tutor service but it cost money.
Buckethead31594
Posts: 363
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1/16/2012 1:24:31 PM
Posted: 4 years ago
At 1/14/2012 9:24:00 AM, OMGJustinBieber wrote:
I'm terrible at physics but I could definitely do kinematics and the situation you described. It's just a matter of getting down the variables. I used an online tutor service but it cost money.

I never thought of hiring a tutor, thanks!
"By all means, marry. If you get a good wife, you'll become happy; if you get a bad one, you'll become a philosopher." - Socrates
DetectableNinja
Posts: 6,043
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1/16/2012 2:19:31 PM
Posted: 4 years ago
At 1/13/2012 4:04:41 PM, Buckethead31594 wrote:
I have a terrible time with pysics. Can anyone suggest some good sites that explain it well? I have the most trouble with scenario questions... (eg. if Jimmy dropped a ball from a 24ft building, etc...)

thanks!

Lol. Feet used in physics? Trololol. Meters are where it's at.
Think'st thou heaven is such a glorious thing?
I tell thee, 'tis not half so fair as thou
Or any man that breathes on earth.

- Christopher Marlowe, Doctor Faustus
mongeese
Posts: 5,387
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1/18/2012 11:34:53 PM
Posted: 4 years ago
I assume you're working with kinematics? You must first ask yourself what you know (the initial hight of 24 feet, the acceleration due to gravity of 32 feet). You then ask yourself what you need to know (let's say it's how long it takes for the ball to hit the ground). You then plug all of this into an equation that you know, the position equation:
0 ft = 24 ft + 0 ft/s * t - 32 ft/s^2 * t^2

You then solve for what you want to know:
-32 ft/s^2 * t^2 = -24 ft
t^2 = 24/32 s^2 = 3/4 s^2
t = root(3/4) s

Those four basic steps should allow you to solve basic physics problems. Where exactly do you go wrong?
OMGJustinBieber
Posts: 3,484
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1/20/2012 10:08:37 AM
Posted: 4 years ago
At 1/16/2012 1:24:31 PM, Buckethead31594 wrote:
At 1/14/2012 9:24:00 AM, OMGJustinBieber wrote:
I'm terrible at physics but I could definitely do kinematics and the situation you described. It's just a matter of getting down the variables. I used an online tutor service but it cost money.

I never thought of hiring a tutor, thanks!

http://my.tutorcircle.com...