So, I should go about solving the equation then?
Such as,
x + 2 > -1/7
x > -1/7 - 2
x > -15/7
or
x + 2 < 1/7
x < -13/7
It seems these answers conflict, though. How can x be greater than -15/7, and less than
-13/7.
I'm rather confused about absolute value because they have...
Homework Statement
1) x^5 > x^2
2) 7| x + 2 | + 5 > 4
3) 3 - | 2x + 4 | <= 1
Homework Equations
The Attempt at a Solution
1)
x5 - x2 > 0
x2(x3 - 1) > 0
x2(x - 1)(x2 + x + 1) > 0
Im not too sure what to do next. I can't factor it any further, at least I don't think so. Which...
I plugged in the numbers, and it works! Definitely feels good to get the answer right. I do feel cheated though, because I never did learn this equation, but was tested on it.
I will give it an attempt, but I'm still new to physics. So, if my answers are errenous, please, anyone, feel free to correct them.
for 1) it's important to realize for an upward accleration, the nforce acting upwards must be greater than the accleration force.
So, the accleration force...
Are there any other ways of solving the problem?
I'm just curious because we covered the accleration chapter in the book, and it did not mention anything. It is just a matter of simple deriving it from the equation d=voT + 1/2 a t^2?
Homework Statement
A motorcycle has an initial velocity of 8m/s, it increases it's speed to 17m/s, covering a distance of 30m in that time.
What is it's accleration? How long will it take to acclerate to 17m/s?
Homework Equations
As stated in the equation
The Attempt at a...
That's a much more simple way of puting it! I think I may just be confused about the concept of 'net force' and not all that confident in my abilities. The answer definitely made sense in my head. The notion of 60N force acting on the box is what perplexed me. I, somehow, assumed that to be the...
Homework Statement
A rope exerts a constant horiztonal force of 250N to pull a 60kg crate across the floor. The velocity of the crate is observed to increase from 1m/s to 3m/s in a time of 2 seconds under the influence of this force and the frictional force exerted by the floor on the crate...
I have fixed the error, and confirmed that my answers are right for the other questions. However, I am still struggling with the horiztonal and vertical components question.
I am taking an introductry physics course at the moment. I feel I have a grasp on the concepts. I was just wondering if anyone would care to check my work, and ensure I have the right answers.
Thanks
Homework Statement
4. A diver in mexico drives off the top edge of a cliff 200m above...