Posted by Lindsay on Monday, October 8, 2007 at 3:35pm.
They both travel the same distance, in the same time.
Car:
d= 1/2 3.05 t^2
Truck
d= 10.15t
set these equal, and solve for time.
What exactly do you mean by "set them equal?"
"Set them Equal"
1/2 3.05 t^2 = 10.15t
Ok, the time I got was 2.624 s.
Now what?
use that time to find the distance the car went, and its velocity.
Which equation am I using for distance?
d=1/2 a t^2, as above.
Right. I plug in "1/2 x 3.05 x (2.58^2") and come out with 10.15 m.
But that's obviously not correct.
I know I'm doing something wrong, but I'm just not sure what. I'm sorry...this just isn't making much sense yet.
1/2 3.05 * t^2= 10.15t
t^2= 2*10.15t/3.05 divide thru by t,
t= 6.66seconds
d= 1/2 a t^2 or d= 10.15t
Ohhh ok I see my mistake!
Thanks for your patience. :)
how u got the time
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