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  1. H

    Inequalities and absolute value

    That makes sense! Thanks for your help.
  2. H

    Inequalities and absolute value

    I plugged them, and they work. I was just concerned because the textbook asks for me to solve the question also in a graph form.
  3. H

    Inequalities and absolute value

    I understand. Was the posted solution to that question correct? The answers left me confused.
  4. H

    Inequalities and absolute value

    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...
  5. H

    Inequalities and absolute value

    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...
  6. H

    Accleration problem

    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.
  7. H

    Going over my first exam (Kinematics)

    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...
  8. H

    Accleration problem

    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?
  9. H

    Accleration problem

    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...
  10. H

    Simple work and accleration problem

    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...
  11. H

    Simple work and accleration problem

    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...
  12. H

    A few simple problems

    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.
  13. H

    A few simple problems

    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...
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