Engg Mechanics

Blocks A and B of weight 200N and 100N respectively, rest on a 30 inclined plane and are attached to the post which is held perpendicular to the plane by force P, parallel to the plane, Assume that all surfaces are smooth and that the cords are parallel to the plane. Determine the value of P. Also find the Normal reaction of Blocks A and B.

  1. 👍 0
  2. 👎 0
  3. 👁 218
asked by Kishore
  1. Block A:
    200*sin30 = 100 N. = Force parallel
    to the plane.
    Fn = 200*cos30 = 173.2 N. = Normal force

    Block B:
    100*sin30 = 50 N. = Force parallel to
    the plane.
    Fn = 100*cos30 = 86.6 N. = Normal force.

    P = Wa+Wb = 200 + 100 = 300 N.

    1. 👍 0
    2. 👎 0
    posted by Henry

Respond to this Question

First Name

Your Response

Similar Questions

  1. Engg Mechanics

    Blocks A and B of weight 200N and 100N respectively, rest on a 30 inclined plane and are attached to the post which is held perpendicular to the plane by force P, parallel to the plane, as shown in fig. Assume that all surfaces

    asked by Kishore on June 7, 2014
  2. physics

    the inclined plane is 30* from the ground a) What is the mechanical advantage of the inclined plane? b) A weight of 100N is to be lifted using the inclined plane. What is the minimum applied force for this job? c) Suppose that an

    asked by sasha on January 21, 2009
  3. Physics

    the inclined plane is 30* from the ground a) What is the mechanical advantage of the inclined plane? b) A weight of 100N is to be lifted using the inclined plane. What is the minimum applied force for this job? c) Suppose that an

    asked by lulu on January 21, 2009
  4. physics

    Two blocks are connected by a string over a frictionless, massless pulley such that one is resting on an inclined plane and the other is hanging over the top edge of the plane. The inclined plane is inclined at an angle of 37

    asked by Haff on November 19, 2013
  5. Phsycis/Math (please help)

    Two blocks are connected by a string over a frictionless, massless pulley such that one is resting on an inclined plane and the other is hanging over the top edge of the plane. The inclined plane is inclined at an angle of 37

    asked by Jared on November 20, 2013
  1. physics

    What's the solution of a body of weight 100N resting on a plane which is inclined at 30° to the horizontal with the components of the weight parallel and perpendicular to the plane?

    asked by Rose khonje on February 6, 2016
  2. physics

    Two blocks are connected by a string over a frictionless, massless pulley such that one is resting on an inclined plane and the other is hanging over the top edge of the plane. the hanging block has a mass of 16 kg and the one on

    asked by emm on January 18, 2010
  3. Physics

    A 2.5 kg block sits on an inclined plane with a 30 degree inclination. A light cord attached to the block passes up over a light frictionless pulley at the top of the plane and is tied to a second 2.5 kg mass freely hanging

    asked by Margaret on October 11, 2013
  4. Strength of Materials

    A solid block resting on a horizontal surface needed a pull of 40N inclined at angle 25 degree to the plane just to move it, but a push of magnitude 200N inclined at the same angle to the plane just moved the block. What is the

    asked by Mike on September 2, 2016
  5. Physics

    Two blocks A and B are connected by a light in extensible cord passing over a frictionless pulley. Block A starts from rest and moves up the smooth plane which is inclined at 30 degrees to the horizontal. Calculate at the moment

    asked by Ariana on June 1, 2014

More Similar Questions