physics

How can I find kinetic friction (Fk) without mu? I know the normal force which is 201N. The mass of the object is 30kg.
This is the full questions of it helps. I just don't understand how to find kinetic friction

1. If a 30kg object experiences a normal force of 210N when traveling down a ramp, what is the angle of incline? Also, calculate the force of friction and the coefficient of friction.
Answers: μ(mu)=0.98
Θ=44.5 degrees

  1. 👍 0
  2. 👎 0
  3. 👁 219
  1. In this problem, you have to assume that the object slides at some constant velocity (i.e. it is not accelerating). This means that the force of friction is the opposite of the component of the force of gravity along the incline.

    1. 👍 0
    2. 👎 0

Respond to this Question

First Name

Your Response

Similar Questions

  1. Physics AP

    A 32 kg child goes down a straight slide inclined 38∘ above horizontal. The child is acted on by his weight, the normal force from the slide, and kinetic friction. How large is the normal force of the slide on the child?

    asked by raquel on November 20, 2015
  2. Physics

    Starting from rest, a 5.00 kg block slides 2.50 m down a rough 30.0 degree incline. The coefficient of kinetic friction between block and the incline is .436. Determine the work done by the friction force between block and incline

    asked by Dee on October 12, 2011
  3. Physics

    A large statue in a crate is being moved. The mass of the statue and the crate is 150 kg. As the statue slides down a ramp inclined at 40.0°, the curator pushes up, parallel to the ramp’s surface, so that the crate does not

    asked by Maddy on December 5, 2015
  4. Physics

    A horse is harnessed to a sled having a mass of 231 kg, including supplies. The horse must exert a force exceeding 1250 N at an angle of 36.3° (above the horizontal) in order to get the sled moving. Treat the sled as a point

    asked by Doug on October 2, 2018
  1. physics

    a skater with an initial speed of 7.60m/s is gliding across the ice. air resistance is negligible. (a)the coefficient of kinetic friction between the ice and the skate blades is 0.100. find the deceleration caused by kinetic

    asked by ajo on November 23, 2007
  2. physics

    At the airport, you pull a 18 kg suitcase across the floor with a strap that is at an angle of 41° above the horizontal. Find the normal force and the tension in the strap, given that the suitcase moves with constant speed and

    asked by Jessica on October 18, 2011
  3. physics

    4 kg block rests on a smooth horizontal surface,upper surface of 4 kg is rough.A block of mass 2 kg is placed on its upper surface.The acceleration of upper block with respect to earth when 4 kg mass is pulled by a horizontal

    asked by zoha on June 4, 2014
  4. Physics

    A 54 kg box is being pushed a distance of 7.0 m across the floor by a force P whose magnitude is 153 N. The force P is parallel to the displacement of the box. The coefficient of kinetic friction is 0.25. Determine the work done

    asked by Brandon on October 13, 2008
  1. Physics

    1. A block of mass 57.1 kg rests on a slope having an angle of elevation of 28.3°. If pushing downhill on the block with a force just exceeding 162 N and parallel to the slope is sufficient to cause the block to start moving,

    asked by Cameron on October 3, 2018
  2. physics

    A 15.2 kg block dragged over rough horizontal surface by constant force of 124N acting at an angle of 34.9 degrees above the horizontal. The block is displaced 37.8m. The coefficient of kinetic friction is .171. Acceleration is

    asked by jay on February 5, 2018
  3. physics PLEASE HELP (very very confused)

    2 blocks are connected by a rope of negligible mass are being dragged by a horizontal force. Suppose F= 68.0N, m1= 12.0kg, m2= 18.0kg and the coefficient of kinetic friction between each block and the surface is 0.100. a.) draw

    asked by ~christina~ on October 17, 2007
  4. physics

    A block accelerates at 3.3 m/s^2 down a plane inclined at an angle of 26 degrees.Find micro(k) between the block and the inclined plane. The acceleration of gravity is 9.81 m/s^2. This is my work but i am not sure if it is

    asked by alexa on July 14, 2011

You can view more similar questions or ask a new question.