the dude

A car travels down a highway at 45 m/s. An observer stands 250 m from the highway. a) How fast is the distance from the observer to the car increasing when the car passes in front of the observer? (b) How fast is the distance increasing 30 s later?

Let s(t) denote the position of a particle at time t, and let v and a be the velocity and acceleration respectively. The particle is moving according to the data a(t)=10sin(t)+3cos(t) s(0)=-4 s(2pi)=1 find a function describing position of particle s(t)=?...

82kPa

sqrt50/7

1.127 m/s

A. is 0

B is 44.247

i am slowly doing all the work, I just want them to verify my answers, if I have a question about a problem i will post it

0.305573

48.95666

it was ^1.4, I have it solved now however.

just make sure to use r, not d. like drwls.