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-   -   Need help devising an easy physics question that sounds really hard (http://archives1.twoplustwo.com/showthread.php?t=471630)

SmileyEH 08-07-2007 03:14 PM

Re: Need help devising an easy physics question that sounds really har
 
[ QUOTE ]
[ QUOTE ]
Standard one is two trucks are driving toward each other. Each travels at 50 mp/h. At a distance of 100 miles apart a fly takes off from the windshield of one truck traveling toward the other at 80 mp/h. When it reaches the other truck it instantly turns around and flies toward the first - this continues until the trucks collide. What total distance does the fly cover?

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This is poorly worded. It's not clear if the fly is moving 80 mph relative to the ground or 80 mph relative to the truck it flew off.

[/ QUOTE ]

ok...nsert "relative to the ground"

Quicksilvre 08-07-2007 03:18 PM

Re: Need help devising an easy physics question that sounds really har
 
A dalmatian (20 kg) is dropped 20 meters into a vat of lime Jello. When it enters the Jello, it decelerates and comes to a stop 10 m deep. What is the total Jello force acting upon the dalmatian?

a) 100 Newtons
b) 200 N
c) 400 N
d) 800 N

SmileyEH 08-07-2007 03:21 PM

Re: Need help devising an easy physics question that sounds really har
 
[ QUOTE ]
A dalmatian (20 kg) is dropped 20 meters into a vat of lime Jello. When it enters the Jello, it decelerates and comes to a stop 10 m deep. What is the total Jello force acting upon the dalmatian?

a) 100 Joules
b) 200 J
c) 400 J
d) 800 J

[/ QUOTE ]

I think I understand what you're trying to say, but wtf?

stigmata 08-07-2007 03:21 PM

Re: Need help devising an easy physics question that sounds really har
 
more particle physics!

something simple like..... how many centrinos in a googleplex?????

Alobar 08-07-2007 03:21 PM

Re: Need help devising an easy physics question that sounds really har
 
[ QUOTE ]
[ QUOTE ]
[ QUOTE ]
Standard one is two trucks are driving toward each other. Each travels at 50 mp/h. At a distance of 100 miles apart a fly takes off from the windshield of one truck traveling toward the other at 80 mp/h. When it reaches the other truck it instantly turns around and flies toward the first - this continues until the trucks collide. What total distance does the fly cover?

[/ QUOTE ]

This is poorly worded. It's not clear if the fly is moving 80 mph relative to the ground or 80 mph relative to the truck it flew off.

[/ QUOTE ]

ok...nsert "relative to the ground"

[/ QUOTE ]

Isnt that just a math problem and not a physics problem?

Just ask some stupid question like, If the sun was the size of a basketball how far away would pluto be, and then multiple choice like 60 feet, 60 yards, 6 miles, 60 miles (Im not sure what the answer would be, but its obviously the last one)

Quicksilvre 08-07-2007 03:22 PM

Re: Need help devising an easy physics question that sounds really har
 
I'll do the work out if there's demand for it. The answer is C.

FocusedOne 08-07-2007 03:22 PM

Re: Need help devising an easy physics question that sounds really har
 
whats the answer to the fly thing.

SmileyEH 08-07-2007 03:24 PM

Re: Need help devising an easy physics question that sounds really har
 
I'm more interested in how you measure total force in Joules.

asofel 08-07-2007 03:26 PM

Re: Need help devising an easy physics question that sounds really har
 
how many different quarks are there, and what are their flavors?

Quicksilvre 08-07-2007 03:27 PM

Re: Need help devising an easy physics question that sounds really har
 
Is this a level? It's been a while since I took physics but isn't the result of F = ma measured in joules?

[ QUOTE ]
The SI unit used to measure force is the newton (symbol N), which is equivalent to kg·m·s−2.

[/ QUOTE ]

Edit: I even quoted the right answer too. I am off my game today.


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