Help Dodgy 8 with his homework

Apootheosis · 09-07-2005, 07:12 PM

Its 2nd day of school and already physics is drowning me. PLEASE HELP ME FIGURE THIS PROBLEM OUT! I NEED TO KNOW HOW TO FINISH THIS.

A bicyclist is finishing his repair of a flat tire when a friend rides by at 3.6 m/s. Two seconds later, the bicyclist hops on his bike and accelerates at 2.6 m/s2 until he catches his friend.

(a) How much time does it take until he catches his friend?
s
(b) How far has he traveled in this time?
m
(c) What is his speed when he catches up?
m/s

A volcano ejects a lava bomb straight upward with an initial speed of 29 m/s. Taking upward to be the positive direction, find the speed and velocity of the lava bomb after the following amounts of time have elapsed.

(a) 1.5 seconds
m/s (speed)
m/s (velocity)
(b) 4.4 seconds
m/s (speed)
m/s (velocity)

chlaxman · 09-07-2005, 07:28 PM

I'll start with the volcano.
a) You know that initial velocity of the lava bomb is 29 m/s and that acceleration is -9.8 m/s/s. That means that the bomb will be traveling 14.3 m/s (that is both velocity and speed).

b) Once again you know that initial velocity is 29 m/s and acceleration is -9.8 m/s/s. Therefore, the velocity will be -14.12 m/s and the speed will be 14.12 m/s

So now for my prize...
:yawnee:

**DarkFalcon** · 09-07-2005, 08:48 PM

Quote:

Originally Posted by chlaxman

I'll start with the volcano.
a) You know that initial velocity of the lava bomb is 29 m/s and that acceleration is -9.8 m/s/s. That means that the bomb will be traveling 14.3 m/s (that is both velocity and speed).

b) Once again you know that initial velocity is 29 m/s and acceleration is -9.8 m/s/s. Therefore, the velocity will be -14.12 m/s and the speed will be 14.12 m/s

So now for my prize...
:yawnee:

lol

Apootheosis · 09-07-2005, 09:28 PM

Quote:

Originally Posted by chlaxman

I'll start with the volcano.
a) You know that initial velocity of the lava bomb is 29 m/s and that acceleration is -9.8 m/s/s. That means that the bomb will be traveling 14.3 m/s (that is both velocity and speed).

b) Once again you know that initial velocity is 29 m/s and acceleration is -9.8 m/s/s. Therefore, the velocity will be -14.12 m/s and the speed will be 14.12 m/s

So now for my prize...
:yawnee:

why is that the acceleartoin?

chlaxman · 09-07-2005, 10:12 PM

Quote:

Originally Posted by Dodgy 8

why is that the acceleartion?

It's the acceleration of any object in a vertical direction due to the force of gravity. Naturally, it does change the further you get from the core of Earth, but that is the general number used because it doesn't change much until your altitude is very high.

Apootheosis · 09-07-2005, 10:53 PM

Quote:

Originally Posted by chlaxman

It's the acceleration of any object in a vertical direction due to the force of gravity. Naturally, it does change the further you get from the core of Earth, but that is the general number used because it doesn't change much until your altitude is very high.

what your saying is it is the gravitational constant around sea level?

Apootheosis · 09-07-2005, 10:55 PM

Quote:

Originally Posted by chlaxman

I'll start with the volcano.
a) You know that initial velocity of the lava bomb is 29 m/s and that acceleration is -9.8 m/s/s. That means that the bomb will be traveling 14.3 m/s (that is both velocity and speed).

b) Once again you know that initial velocity is 29 m/s and acceleration is -9.8 m/s/s. Therefore, the velocity will be -14.12 m/s and the speed will be 14.12 m/s

So now for my prize...
:yawnee:

edited due to self stupidity

**Trick D** · 09-07-2005, 11:04 PM

You need to watch some of your language there dodgy....

Apootheosis · 09-08-2005, 04:51 PM

bump god damn it

GameDayDog · 09-08-2005, 08:18 PM

Hahaha.. Ooops.. actually, I thought I had already edited the thread's title?? ...

I guess we'll alwayz have one member that loves to push the limits of the rules and try to turn thys place into BB.Com ...

Peace..~G

Apootheosis · 09-08-2005, 08:37 PM

Wasnt i the the first guy to stand up to bozz?

**Trick D** · 09-08-2005, 09:30 PM

What the hell are you talking about?

Apootheosis · 09-08-2005, 10:24 PM

Quote:

Originally Posted by Trick D

What the hell are you talking about?

apparently im attempting to turn this place into BB.com

**Trick D** · 09-09-2005, 01:14 AM

Well we are not bb.com... and I don't think you need to use language like that to get your point across. That is what I'm talking about...

**Peaked_18** · 09-09-2005, 01:23 AM

It was funny, but rude. I agree.

Dustin, just let it go, any further violations, then you can ban him...:p

Apootheosis · 09-09-2005, 01:29 AM

Quote:

Originally Posted by Trick D

Well we are not bb.com... and I don't think you need to use language like that to get your point across. That is what I'm talking about...

correct.

**johnsbod** · 09-09-2005, 03:36 AM

Quote:

Originally Posted by Dodgy 8

correct.

Standards for thread titles have been in place since the site started. What does standing up to BOZZ on bb.com have to do with IronMass?

Vegeto · 09-09-2005, 03:38 AM

Quote:

Originally Posted by Peaked_18

It was funny, but rude. I agree.

Dustin, just let it go, any further violations, then you can ban him...:p

^^ I'll second all of that... forgetaboutit

EDIT: both should let it go.

**johnsbod** · 09-09-2005, 03:40 AM

Quote:

Originally Posted by Peaked_18

It was funny, but rude. I agree.

Dustin, just let it go, any further violations, then you can ban him...:p

Let Trick do his job, he's just trying to maintain the forum rules.

Vegeto · 09-09-2005, 03:53 AM

Quote:

Originally Posted by johnsbod

Standards for thread titles have been in place since the site started. What does standing up to BOZZ on bb.com have to do with IronMass?

True.
IronMass is not bb.com, we can all relax. Mods Moderate. That is what they do. Bozz does not moderate here, nor does his spirit live on in the mods here.
PinkApooDodgyTheosis is a good member, he doesn't need to be banned, his thread title was funny, but relax Dodgy-bro, Mods Moderate, that is what they do. If you want to battle, pick'em. There is no way you can convince anyone that your thread title wasn't potentially offensive. (I found it humorous

) but not everyone will. Just my 2cents if anyone wants to spend it.

09-07-2005, 07:12 PM	#1
Apootheosis Pro Stature Join Date: May 2005 Posts: 625 Recipes: 0 Rep Power: 10	Help Dodgy 8 with his homework Its 2nd day of school and already physics is drowning me. PLEASE HELP ME FIGURE THIS PROBLEM OUT! I NEED TO KNOW HOW TO FINISH THIS. A bicyclist is finishing his repair of a flat tire when a friend rides by at 3.6 m/s. Two seconds later, the bicyclist hops on his bike and accelerates at 2.6 m/s2 until he catches his friend. (a) How much time does it take until he catches his friend? s (b) How far has he traveled in this time? m (c) What is his speed when he catches up? m/s A volcano ejects a lava bomb straight upward with an initial speed of 29 m/s. Taking upward to be the positive direction, find the speed and velocity of the lava bomb after the following amounts of time have elapsed. (a) 1.5 seconds m/s (speed) m/s (velocity) (b) 4.4 seconds m/s (speed) m/s (velocity) __________________ lawlz Last edited by Trick D : 09-07-2005 at 11:05 PM.

09-07-2005, 07:28 PM	#2
chlaxman Pro Stature Join Date: Jun 2005 Location: Maine baby Posts: 560 Recipes: 0 Rep Power: 9	I'll start with the volcano. a) You know that initial velocity of the lava bomb is 29 m/s and that acceleration is -9.8 m/s/s. That means that the bomb will be traveling 14.3 m/s (that is both velocity and speed). b) Once again you know that initial velocity is 29 m/s and acceleration is -9.8 m/s/s. Therefore, the velocity will be -14.12 m/s and the speed will be 14.12 m/s So now for my prize... :yawnee: __________________ Tempora mutantur, et nos mutamur in illis. :weight_li :dumbells: :bed2: :friday:

09-08-2005, 04:51 PM	#9
Apootheosis Pro Stature Join Date: May 2005 Posts: 625 Recipes: 0 Rep Power: 10	bump god damn it __________________ lawlz

09-08-2005, 08:18 PM	#10
GameDayDog The Dawg Is Back!! Join Date: May 2005 Location: Doin Compound Movements 4 Scooby Snacks! Posts: 1,914 Recipes: 0 Rep Power: 32	Actually.. Hahaha.. Ooops.. actually, I thought I had already edited the thread's title?? ... I guess we'll alwayz have one member that loves to push the limits of the rules and try to turn thys place into BB.Com ... Peace..~G __________________ I am Thee Alpha.. RaSP is Thee oMEGA.. Between the 2 of us - We have everythyng covered... I want to be bigger than all the humans!! "I'm sure I should be doing cardio too....but I don't run from anything...so why practice?" - 1stInDoor Goal - 200#'s 5/27/07 - 4/27/07 - 175# 3/27/07 - 167#

09-08-2005, 08:37 PM	#11
Apootheosis Pro Stature Join Date: May 2005 Posts: 625 Recipes: 0 Rep Power: 10	Wasnt i the the first guy to stand up to bozz? __________________ lawlz

09-09-2005, 01:23 AM	#15
Peaked_18 a la commode Join Date: May 2005 Posts: 4,247 Recipes: 2 Rep Power: 96	It was funny, but rude. I agree. Dustin, just let it go, any further violations, then you can ban him...:p