12th Grade Physics

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.

asked by Ring
  1. 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

    posted by drwls
  2. 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

    posted by Ring

Respond to this Question

First Name

Your Answer

Similar Questions

  1. 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.
  2. 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 .
  3. 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
  4. physics

    A light spring with force constant 3.85 N/m is compressed by 5.00 cm as it is held between a 0.250 kg block on the left and a 0.500 kg block on the right, both resting on a horizontal surface. The spring exerts a force on each
  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

    a block of mass 0,5kg is attached to a spring .The spring is compressed to a distance of0,1m.The block is released .The block moves 0,07m past the equilibrium position .What is the force of friction that does work on the block.
  7. Physics

    Suppose the block is released from rest with the spring compressed 5.50 cm. The mass of the block is 1.60 kg and the force constant of the spring is 965 N/m . Assume the surface is frictionless. A) What is the speed of the block
  8. 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
  9. Physics Energy & Acceleration

    A light spring with force constant 3.45 N/m is compressed by 7.92 cm as it is held between a 0.241 kg block on the left and a 0.482 kg block on the right, both resting on a horizontal surface. The spring exerts a force on each
  10. Physics

    A moving 4.80 kg block collides with a horizontal spring whose spring constant is 243 N/m. The block compresses the spring a maximum distance of 5.50 cm from its rest position. The coefficient of kinetic friction between the block

More Similar Questions