resolving

  1. W

    Resolving Forces

    Here is another one. WOw, resolving forces is really messing with my head. So...here it goes A skier of mass 78 kg is pulled at constant speed up a slope of 12 degrees, by force of 210 N acting upwards of 20 degrees to the slope. Find the magnitudes of the frictional force and the normal contact...
  2. W

    Resolving Forces

    Hello, I need help please! A particle is in equilibrium under the action of the three forces shown in the diagram. By resolving in the direction of the force of magnitude Y N, show that Y = 5. Calculate the value of X. The diagram is given below. I keep getting Y = 20. Please show the working...
  3. D

    Resolving a logarithmic equation

    Hey everyone, So I've been given the following equation: and the following interval: and I have been asked to solve it for a=3 and a=1/3 I assume to do so I must start by using the log(ab)=log(a)+log(b) identity to make it: log_{a}((2cos(x)+1)(cos(x)))\geq 0 but after that I am lost (it is...
  4. Mukilab

    Resolving forces question

    In the picture I have attached, you have to resolve the two forces (T, equal value) as the red R down the middle, but I was always taught to resolve forces by connecting them up as shown by the green R at the bottom. Am I getting confused between resolving forces and equilibria? What's going...
  5. T

    Mechanics help, resolving forces

    Two particles P and Q of equal mass are connected by a light inextensible string. The string passes over a small smooth pulley which is fixed at the top of a fixed wedge. One face of the wedge is smooth and inclined to the horizontal at an angle of 30° and the other face of the wedge is rough...
  6. E

    Resolving normal components with 2 slopes

    The diagram (attached) shows a small ball of mass 2 kg, resting in the horizontal groove between two smooth planes inclined 20 degrees and 40 degrees to the horizontal. Find the magnitudes of the contact forces P and Q. I know I have to resolve the forces in one direction but I'm stuck cause...
  7. E

    Resolving forces

    Hey guys, Question: A mass of 2.6 kg is maintained in equilibrium in a vertical plane by forces of 5P N and 12P N (where P is an unknown constant) which are perpendicular. 5P is at an angle \alpha from the vertical. Find the value of \alpha and the value of the constant P. So 12p is at...
  8. C

    Resolving a vector into a sum of two vectors

    "Resolve the vector u = 5i + j + 6k into a sum of two vectors, one of which is parallel and the other perpendicular to v = 3i - 6j + 2k." What I want to know with this question is how you are able to know how to find the sum of each vector. I know that you find the vector projection of u in...
  9. R

    Resolving a vector into the sum of two other vectors (using dot products)

    Hi, I'm having trouble with a linear algebra question and would really appreciate some help. resolve the vector u = 5i + j + 6k into a sum of two vectors, one of which is parallel to and the other perpendicular to v = 3i - 6j + 2k Thanks!
  10. furor celtica

    resolving forces, should be simple

    Two cylinders of equal radii each have weight W. They are at rest on a smooth slope of inclination A° to the horizontal, the lower of the two cylinders being in contact with a smooth vertical wall as shown in the diagram. Find, giving your answer in terms of W and A°, the magnitude of the force...
  11. V

    A circular problem with resolving a sales price

    Hi, I am new here but have a maths problem that is causing me to loose my hair lol. I am trying to arrive at a price to sell something on eBay, taking into account the variable costs that eBay and PayPal charges and factoring them into the selling price. However, the selling price also changes...
  12. furor celtica

    resolving forces

    a boat on a trailer is held in equilibrium on a slipway inclined at 20° to the horizontal, by a cable inclined (upward) at theta° to a line of greatest slope of the slipway. The combined mass of the boat and trailer is 1250kg. The cable may break if the tension exceeds 7000N. Find the max value...
  13. U

    [SOLVED] Resolving Forces - Mechanics

    Hi, kindly have a look at the attached image. For part (ii) I have drawn the vertical and horizontal components, I just don't know where to put the 40 degree angle, at the head or at the tail and why? Thanks!
  14. furor celtica

    resolving forces

    a lamp is supported in equilibrium by two chains fixed to two points A and B at the same level; the lengths of the chains are 0.3m and 0.4m and the distance between A and B is 0.5m. Given that the tension in the longer chain is 36N, show by resolving horizontally that the tension in the shorter...
  15. F

    M1 question- Resolving frictional forces

    Hi I am having a problem with this question, and was wondering whether I could have a bit of a nudge in the correct direction? I cannot do part 'iv'; however, I think that I may have worked out part iv for question iii though Im not sure The answers I have so far are: A) i) Resolve...
  16. C

    resolving for x

    finding de value of x I tried to solve thees but (Headbang) is useless I not doing it right. Can some one lead the way? 1) sqrt(2x + 1) = x-1 2) -2< x+2/x-1
  17. M

    Resolving forces on slopes

    Hi, could anyone help me with understanding this please? "A crate of mass 30kg is at rest on a slope which is at 18 degrees to the horizontal. Find the frictional force." The frictional force = 30gcos(72 degrees) I don't understand this because cos(72 degrees)= adjacent/hypotenuse, so...
  18. U

    Resolving Vector Components

    Hi, I need help with resolving components of vector forces. For example how would you solve the last question mentioned on this website http://www.s-cool.co.uk/alevel/physics/vectors-and-scalars-and-linear-motion/resolving-vectors-into-components.html I've read the procedure on the above page...
  19. Y

    trouble resolving efficient value of x

    Hi I've got a problem where I have two firms, i and j both cooperating in performing r&d. The level of r&d expenditure for each firm is given by xi and xj and is symmetric as the two firms have the same cost function - if you can find xi, then the same result is valid for xj. Where I'm having...
  20. L

    Maths M1 Mechanics RESOLVING FORCES

    Please can someone help me on this question: Two forces of magnitude 5N and 6N act on the point 0. The angle between the two forces is X The resultant of the two forces has magnitude 5N. Calculate the value of X. Many thanks, languages