Homework Statement
Find the roots and the vertex for 3x^2 + 5x - 2
Homework Equations
ax^2 + bx + c
a(x - h) + k
The Attempt at a Solution
OK, this is what I attempted.
3x^2 + 5x - 2 = 0
3x^2 + 6x - x - 2 = 0
3x(x+2) - 1(x+2) = 0
x = 1/3 and x = -2
OK, so I found the roots...
Homework Statement
OK, I'm posting to clarify if my answer is correct.
1. An airplane is flying with a velocity of 90.0 m/s at an angle of 23.0m\s above the horizontal. When the plane is a distance 115 m directly above an observer that is standing on level ground, a suitcase drops out of the...
Oh.. do you mean I could simply find the slope of the line and that is my acceleration, since the slope of a line is the acceleration of an object on a v-t graph?
Would I need to find the average acceleration by minusing the initial velocity from the final velocity divided by the final time minus the initial time to get 4m/s^2?
I'm sorry, I meant "rightward changing velocity". In the second graph on that page from the top, they graph 4, 8, 12, 16 and 20 and not the numbers 2, 8, 18, 32 and 50. Am I missing something blatantly obvious here, or?
OK, on a velocity-time graph, how does one determine the acceleration?
I actually attempted to find the slope of the line and the graph here:
http://www.physicsclassroom.com/Class/1DKin/U1L4a.cfm (the second graph with the rightward changing velocity) Why does it graph 4, 8, 12, 16 and 20...