Explore BrainMass

Explore BrainMass

    Caculate Tension Problem / Incline Plane and Pulley Problem

    This content was COPIED from BrainMass.com - View the original, and get the already-completed solution here!

    Please see attachment.

    1. A 70 kg painter standing on a long 5.5 m board which suspended from 2 vertical
    ropes attaches to each end of the board. Board is 15 kg.
    If the painter stood 1.5 m from one end of the board what will be the tensions in
    ropes?

    2. We have system with incline plane and pulley.
    Incline plane: angle = 30 degree
    Pulley: radius = 0.1m, mass = 0.1kg
    We have two masses M1 = 8kg and M2 = 3kg connected by sting. M1 on the incline plane, M2 suspended thru pulley (vertically)
    (see attachment for diagram)
    a. What is the acceleration of the masses? (neglect friction and string mass)
    b. If the pulley has a constant frictional torque of 0.05m*N when the system is
    in motion what is acceleration of masses? (Hint: Isolate the forces. The tensions
    in the string are different. Why?)

    © BrainMass Inc. brainmass.com February 24, 2021, 2:34 pm ad1c9bdddf
    https://brainmass.com/physics/torques/caculate-tension-problem-incline-plane-pulley-problem-29675

    Attachments

    Solution Preview

    Hi there!

    Here are the solutions to these two problems! (See attachments.)

    40.
    70 kg painter standing on a long 5.5 m board which suspended from 2 vertical
    ropes attaches to each end of the board. Board is 15 kg.
    If the painter stood 1.5 m from one end of the board what will be the tensions in
    ropes?

    We have two equilibrium equations here:
    1. The total linear forces must be zero (the board does not fall down)
    2. The total torque about any point is zero (there is no ...

    Solution Summary

    The solution is provided in identical attachments in different formats (.pdf and .doc).

    $2.19

    ADVERTISEMENT