physics

posted by .

A 3.0 kg block is pushed along a horizontal floor by a force F of magnitude 19 N at an angle θ = 30° with the horizontal. The coefficient of kinetic friction between the block and floor is 0.25.(a) Calculate the magnitude of the frictional force on the block from the floor.(b) Calculate the magnitude of the acceleration of the block.

  • physics -

    Fnormal= 19sin30+mg=38.9 N
    a)friction = u Fnormal = 0.25x38.9 = 9.73 N

    b) a =( 19cos30 -Friction)/m
    =2.24m/s/s

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Physics/Math

    A 3.0 kg block, initially in motion, is pushed along a horizontal floor by a force F of magnitude 18 N at an angle = 45° with the horizontal. The coefficient of kinetic friction between the block and floor is 0.25. (Assume the positive …
  2. A 3.5 kg block, initially in motion, is pushed along a horizontal floor by a force F of magnitude 17 N at an angle θ = 35° with the horizontal (Figure 6-20). The coefficient of kinetic friction between the block and floor is …
  3. physics

    A 3.5 kg block, initially in motion, is pushed along a horizontal floor by a force F of magnitude 17 N at an angle θ = 35° with the horizontal (Figure 6-20). The coefficient of kinetic friction between the block and floor is …
  4. physics

    A 3.5 kg block, initially in motion, is pushed along a horizontal floor by a force F of magnitude 19 N at an angle θ = 45° with the horizontal. The coefficient of kinetic friction between the block and floor is 0.25. (Assume …
  5. Physic

    A 3.5 kg block is pushed along a horizontal floor by a force of magnitude 15 N at an angle è = 40° with the horizontal. The coefficient of kinetic friction between the block and the floor is 0.25. Calculate the magnitudes of (a) …
  6. Physics

    A 3.4 kg block is pushed along a horizontal floor by a force of magnitude 21 N at a downward angle θ = 40°. The coefficient of kinetic friction between the block and the floor is 0.26. What the magnitude of the block's acceleration?
  7. AP Physics C

    A 4.10 kg block is pushed along a floor by a constant applied force that is horizontal and has a magnitude of 39.0 N. Figure 6-26 gives the block's speed v versus time t as the block moves along an x axis on the floor. What is the …
  8. physics

    A 4.30 kg block is pushed along a floor by a constant applied force that is horizontal and has a magnitude of 43.0 N. The figure gives the block's speed v versus time t as the block moves along an x axis on the floor. The scale of …
  9. Physics

    A 3.10 kg block is pushed along a floor by a constant applied force that is horizontal and has a magnitude of 43.5 N. What is the coefficient of kinetic friction between the block and the floor?
  10. PHYSICS

    A 3.5 kg block is pushed along a horizontal floor by a force of magnitude 15 N at an angle 40° with the horizontal (Fig. 6-19). The coefficient of kinetic friction between the block and the floor is 0.25. Calculate the magnitudes …

More Similar Questions