12th Grade Physics

posted by .

Q. a 2.0 kg block is placed against a spring of force constant 800 N/m, which has been compressed 0.15m. The spring is released, and the block moves 1.2m along a horizontal surface with a coefficient of friction of 0.19. The block then slides up the incline with a coefficient of friction of 0.24. Find the maximum distance the block slides up the incline before sliding back down.

The angle of an incline is 35 degrees

I know the answer.
The answer for this question is 0.30m but i don't know how to get this answer.
i need a solution.

  • 12th Grade Physics -

    Equate the initial compressed spring energy, (1/2) k Xc^2, to the work done against friction PLUS the increase in potential energy, M g H. H is the height the block rises before turning back, and Xc is the spring compression, 0.15 m. The work done against friction is in two parts: the work done on the level surface, M g f1 x1, and the work done on the sloped surface, M g cos 35 f2 x2. The distance the block slides up the ramp is x2 = H/sin 35

    Solve your equation for H and then compute H/sin 35

  • 12th Grade Physics Help!!!!! -

    how do i solve for H?

    can u explain it more specific and is f friction???

    do you mean that (1/2) k Xc^2 is equal to M g H???

    thanks

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Physics

    I am stumped on this homework problem and would like help at least to get me thinking in the right direction: It is a 2-D problem where a spring "plunger" is being used to propel a block forward. More specifically: the block rests …
  2. physics

    [20 pts] A 2.00 kg block is pushed against a spring with negligible mass and force constant k = 400 N/m, compressing it 0.220 m. When the block is released, it moves along a frictionless, horizontal surface and then up a frictionless …
  3. physics

    A block of ice of mass 4.10 kg is placed against a horizontal spring that has force constant k = 210 N/m and is compressed a distance 2.60×10−2 m. The spring is released and accelerates the block along a horizontal surface. …
  4. Physics

    A block with mass m = 2.00kg is placed against a spring on a frictionless incline with angle (30 degrees). (The block is not attached to the spring.) The spring with spring constant k = 19.6 N/cm, is compressed 20.0 cm and then released. …
  5. physics

    a 2.0kg block is pushed against a spring that has a force constant of 10 n/m. the spring is compressed 10 cm. when the block is released, it slides across a rough surface for 25 cm before it stops. find the coefficient of friction …
  6. physics ( please help me)

    A 2.00kg block is pushed against a spring with force constant k=400N(m^-1), compressing it 0.180m. The block is then released and moves along a frictionless horizontal surface and then up frictionless incline with slope angle 37.0degrees. …
  7. Physics

    A 2.95 kg block on a horizontal floor is attached to a horizontal spring that is initially compressed 0.0330 m. The spring has force constant 900 N/m. The coefficient of kinetic friction between the floor and the block is 0.42 . The …
  8. Physics

    A block with mass m = 2.00 kg is placed against a spring on a frictionless incline with angle θ=30.0° (see figure). The block is NOT attached to the spring. The spring, with spring constant k = 19.6 N/cm, is compressed 20.0 cm …
  9. physics

    A 7 kg block is pushed by an external force against a spring with spring constant 124 N/m until the spring is compressed by 2.1 m from its uncompressed length (x = 0). The block rests on a horizontal plane that has a coefficient of …
  10. mechanics

    Jayden holds a 3kg block pressed up against a spring on a horizontal and frictionless surface. The spring has a spring constant of 300Nm. The spring is fixed in place, but the block is free to move. The spring is initially compressed …

More Similar Questions