Recent content by themadcow45

D'oh. Physics isn't my thing, but thanks for the help gneill - you've been invaluable in your patience and quick responses. Thank you!

(12.5 + 52.5) / 4 is coming out to be incorrect...Any tips on what I'm doing wrong?

Ah, I read your previous post wrong, my fault... it would be 12.5. But would 52.5 still be the end point, right, since you can't extend the graph to t = 10?

Oh...I think I understand...So it would be (21.5 + 52.5) / 4 ?

I've gotten everything except the last problem; 3) Calculate the magnitude of the car’s average velocity from 5 s to 9 s. Answer in units of m/s. Here's my work so far: 5 to 6: v = 13, x = 21.5 6 to 8: v = 11, x = 45.5 8 to 9: v = 3, x = 52.5 You said the average velocity is total...

Hi gneill, So for 1), here's my work: 0 to 1: x - 0 = 0(1) + .5(0)(1)^2 = 0 1 to 3: x - 0 = 0(2) + .5(2)(2)^2 = 4 3 to 4: x - 4 = 4(1) + .5(1)(1)^2 = 8.5 4 to 5: x - 8.5 = 4(1) + .5(1)(1)^2 = 13 Would 13 be the correct answer, or am I missing anything?

Homework Statement Consider the acceleration of a particle along a straight line with an initial position of 0 m and an initial velocity of 0 m/s. 1) Calculate the magnitude of the displacement after the car travels the first 5 s. Answer in units of m. 2) How far does the car...

Thanks for the help...now for finding the position at 5s, the second part of the problem I listed above, I used this equation: x-x0 = v0t + .5(a)(t)^2 For 0 to 2 seconds my equation was: x-(-15) = -3(2) + .5(7)(2)^2 = -7 Then for 2 to 5 seconds, this was my equation: x-(-7) = 14(3) +...

I'm adding the velocities because it isn't constant over the entire time, but it is constant at different intervals, so to find the velocity at a given time, I would add all the constant velocities up to that given point, right? If not, what would I do?

So I'd change my second equation accordingly, and this would be the result, right? v= -3 + (7)(2) = 11 v= 11 + (1)(3) = 14 Total velocity = 25 m/s

Homework Statement Consider the plot below describing the acceleration of a particle along a straight line with an initial position of −15 m and an initial velocity of −3 m/s. A) What is the velocity at 5 s? Answer in units of m/s. B) What is the position at 5 s? Answer in units of...