Recent content by OUstudent

I'm an idiot... Thanks

Homework Statement Jack and John are standing 6m apart from each other playing soccer. Jack kicks the ball to John and John kicks it back immediately. Jack kicked the ball with a velocity of 5.40 m/s and after 2.6 s he got the ball back. Suppose there's no deceleration of the ball when it's...

i got the right answer. thank you

(Δt)v12 + (Δv)(Δt)v1 - (Δv)(1mi) = 0 fixed?

Ah ok. so then i just simplify that equation to find v1. which would be.. (v12)(Δt) + (ΔvΔt) - (Δv)(1 mi) = 0 so then i do quadratic?

That's what i thought i was doing. by putting in v1t1=1mile into (v1 + change in v)(t1-change in t). but would that be (v1 + change in v)(v1 - change in t)? or (v1 + change in v)((1/v1) - change in t)?

Homework Statement Driving along a crowded freeway, you notice that it takes a time t to go from one mile marker to the next. When you increase your speed by 4.5 mi/h, the time to go one mile decreases by 10 s. What was your original speed? Homework Equations V=D/T The Attempt at a...

Oh i see! They just want m/s! Completely understand now. Thank you

Homework Statement The speed, v, of an object is given by the equation v = At3 - Bt4 where t refers to time. What are the dimensions of A? (Express your answers using only m for distance and s for time.) Homework Equations The Attempt at a Solution I know the answer. A is m/s4...

but don't you plug what i had into the first equation for v1? i didn't mean to put the parenthesis where i did. i mean to put so. (1/t1-10)-4.5 = 1/t then solve for t. is this still not correct?nvm...

Ok, so what i think you're saying is... V1+4.5= 1/T1-10 v1= (1/t1-10)-4.5 so.. (1/t1-10-4.5) = 1/t? then solve that for T?

which means T2= t1-10 , I think... I feel like it should be a simple plug in now but i can't seem to find out how. V1+6.6= 1/(t1-10) I'm missing something.. either a way to get time or velocity so i can solve for the other..

4.5mph = 6.6ft/s V1= 1/T V2+6.6ft/s= (1)/(T-10) Velocity is used for speed correct? I also realized it gives you distance.. duhhh.. How do i proceed from here? Am i trying to isolate time to but into the v1 equation?

Homework Statement Driving along a crowded freeway, you notice that it takes a time t to go from one mile marker to the next. When you increase your speed by 4.5 mi/h, the time to go one mile decreases by 10 s. What was your original speed? Homework Equations V= D/T The Attempt at a...