Physics

A wooden plank is inclined at and angle of 23 degrees above the horizontal. A 2.0 kg box attached to a rope is is pulled up the incline. The coefficient of kinetic friction between the box and the wooden plank is 0.15.
What does the tension in the rope is the box moves up the incline at a constant velocity?

  1. 👍 0
  2. 👎 0
  3. 👁 83
asked by Eunice
  1. gravity down the plank: mg*sinTheta
    friction down the plank: mg*mu*cosTheta

    So if it is moving up at constant velocity, then tension= sum of friction+gravitydownplank

Respond to this Question

First Name

Your Response

Similar Questions

  1. PHYSICS Please Help

    A box rests on a plank that is inclined to the horizontal. As the angle between the plank and the horizontal increases, does the component of the weight of the box parallel to the plank increase, decrease, or remain the same?

    asked by Suzanne on October 16, 2006
  2. Physics

    A disconcerted dog of a mass 7.80 kg is sliding down a frictionless plank which is inclined at an angle of 48.0 degrees to the horizontal. Calculate the force which accelerates the dog down the plank.

    asked by Sandra on October 1, 2010
  3. PHYSICS HELP

    A box rests on a plank that is inclined to the horizontal. As the angle between the plank and the horizontal increases, does the component of the weight of the box parallel to the plank increase, decrease, or remain the same?

    asked by Suzanne on October 16, 2006
  4. trigonometry

    to unload hollow blocks from the cargo truck a wooden plank whose end rests against the truck's platform 1.5 meters above the ground is used. if it is inclined 37%49 with the ground, how long is the wooden plank?

    asked by karEn on August 14, 2014
  5. spring- physics

    A 2.0-kg box rests on a plank that is inclined at an angle of 65 degrees above the horizontal. The upper end of the box is attached to a spring with a force constant of 400 N/m. If the coefficient of static friction between the

    asked by Cerra on October 28, 2010
  6. physics

    a 5-kg crate is resting on a horizontal plank. the coefficient of static friction is .5 and the coefficient of kinetic friction is .4. after one end of the plank is raised so the plank makes an angle of 25 degrees with the

    asked by colin on October 26, 2010
  7. physics

    1 A block of mass mb sits atop a at wooden plank of mass mp on a plane inclined an angle theta with respect to thehorizontal. The two are supported near the bottom of the plane by a spring of spring constant k that is in

    asked by lala on October 18, 2011
  8. PHYSICS HELP 3RD REQUEST

    A box rests on a plank that is inclined to the horizontal. As the angle between the plank and the horizontal increases, does the component of the weight of the box parallel to the plank increase, decrease, or remain the same?

    asked by Suzanne on October 17, 2006
  9. Physics

    A 525-g book is placed on a wooden plank which is at an angle of 35.0° to the horizontal. After the book is released, it is measured to slide down the plank with an acceleration of 2.56 m/s2. (a) Calculate the coefficient of

    asked by Anonymous on October 9, 2018
  10. Physics

    A 525-g book is placed on a wooden plank which is at an angle of 35.0° to the horizontal. After the book is released, it is measured to slide down the plank with an acceleration of 2.56 m/s2. (a) Calculate the coefficient of

    asked by Eskimo on October 10, 2018

More Similar Questions