E: 24/04? (Weekly) £50 Tesco voucher (FB)

Gilla_2

Saved to weeklies.

:j

twoLou

New one up today which ends on the 12/03

Welcome to the third Motors Motor challenge. This is our first braking distance challenge.
We accelerated to 50mph, then put the brakes to the test. The Motor's Motor skidded to a halt, what do you think the total distance was from 0mph to 50 and back?

https://www.facebook.com/motors.co.uk?sk=app_253735921374956

marialionza

Is this basic physics?

twoLou

This website has a good guide to stopping distance at various speeds.

http://www.racemath.info/motionandenergy/stop_distance.htm

sassy165

claira wrote: »

This website has a good guide to stopping distance at various speeds.

http://www.racemath.info/motionandenergy/stop_distance.htm

Using this site I would go for 50 - 100 metres :T

Thanks everyone :A

fnc63

sassy165 wrote: »

Using this site I would go for 50 - 100 metres :T

Thanks everyone :A

yes, that is about the stopping distance BUT the question worries me

what do you think the total distance was from 0mph to 50 and back?

so is it a trick question, are we to try and figure out how far it had to go to get to 50mph as well ??

if so , there can be only one possible outcome - 200m+


helpppppppp :doh: :silenced:

marialionza

I said it those are basic physics calculations. I can't remember the equation

BlueBella

Yes, I agree with fnc63 - the question is asking how far the car travels in total from 0-50 and then back to 0. If you go by Claira's link for the stoppage time from 50 down to 0 - it gives you 53 metres. I found this:

http://answers.yahoo.com/question/index?qid=20100804183201AAPMsxv

which then takes you to:

https://docs.google.com/file/d/0B93wLOqLZwn_MzZmOTMxNjUtNmUwYS00Mzk1LTg3MTgtNzMzMDUyNjFhY2Ey/edit?authkey=CKesitoJ#

But the answer is in miles. So what we need to do is convert the answer into metres and add it to 53metres - is that right? Sorry my mind is boggled lol! Emmm....0.694 mile = 1 116.884 736 metres so 53+1116=1169 metres? Oh but does that not sound too high? It would make the answer: 200m+

twoLou

New one up today ends 15th

This time, we drove our Motor’s Motor up to 30 MPH, then shifted to neutral and coasted to a halt in our Curling Challenge. How many metres do you think it took the Motors Motor to reach 30mph and coast to a stop?
Get this right and you could win 50 quid – plus you’ll get an entry into our grand prize draw!


https://www.facebook.com/motors.co.uk/app_253735921374956

I've not had chance to have a look yet so no idea of the answer but these are the options

300m

300 - 400m

401 - 500m

501m +

Amilucky?

comp link
https://www.facebook.com/motors.co.u...53735921374956

1000 feet according to the site below 1000 feet = 304.8 meters
http://www.google.co.uk/url?sa=t&rct=j&q=30%20mph%20coasting%20stopping%20distance&source=web&cd=7&ved=0CE0QFjAG&url=http%3A%2F%2Fwww.skil.org%2FTB_folder_test%2FTB_problem-folder%2FTB-prob.html&ei=MUdfT4mtFsWn8QOxupnZBw&usg=AFQjCNHKdeqyE2qn77qGXiZWstq7MEjvxA&cad=rja

Let me describe the kind of thinking that might have transpired. Coasting stops, hard braking stops, and crash stops are different stopping distances. For a car going 30 mph, coasting to a stop could take a 1000 feet. Hard breaking a car stops it in 50 to 60 feet. Crashing stops a car in one or two feet

.
Best of Luck