physics

posted by .

4. What force is needed to push a 15 N object up a 20° incline at constant speed when the coefficient of friction is 0.30?

  • physics -

    Compute the friction force,
    Ff = W*cos20*Uk
    Add it to the component of the weight in the direction down the incline:
    W sin20.
    The applied force must equal the sum of those two forces if the object is yo move at constant speed up the incline.
    Uk = 0.30
    W = 15 N

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Physics

    A large crate filled with physics laboratory equipment must be moved up an incline onto a truck. 1. The crate is at rest on the incline. What can you say about the force of friction acting on the crate?
  2. physics

    4. What force is needed to push a 15 N object up a 20° incline at constant speed when the coefficient of friction is 0.30
  3. physics

    A large crate filled with physics laboratory equipment must be moved up an incline onto a truck. 1. The crate is at rest on the incline. What can you say about the force of friction acting on the crate?
  4. physics multiple choice

    A force F is required to push a crate along a rough horizontal floor at a constant speed V with friction present. What force is needed to push this crate along the same floor at a constant speed 3V if friction is the same as before?
  5. physics multiple choice

    A force F is required to push a crate along a rough horizontal floor at a constant speed V with friction present. What force is needed to push this crate along the same floor at a constant speed 3V if friction is the same as before?
  6. Physics

    A 25kg crate is sitting at the bottom of an inclined plane. The inclined plane 12m long meets the horizontal at an angle of 15 degrees and has a coefficient of friction of 0.55. A force is applied to the crate so as to slide the crate …
  7. physics

    What force must be applied to push a carton weighing 350 N up a 19° incline, if the coefficient of kinetic friction is 0.45?
  8. physics

    What force must be applied to push a carton weighing 350 N up a 19° incline, if the coefficient of kinetic friction is 0.45?
  9. physics

    What force must be applied to push a carton weighing 350 N up a 19° incline, if the coefficient of kinetic friction is 0.45?
  10. Physics

    A) An object with mass M=10kg is held on a incline. The object and the incline surfaces have a static friction coefficient of 0.3. What is the maximum angle at which the object starts moving?

More Similar Questions