physics

posted by .

A 34.2 -kg block rests on the
oor.
(a) What force (N) does the
oor exert on the block?
(b) If a rope is tied to the block and run vertically over a pulley, and the other end is
attached to a free-hanging 5.6 kg weight, what force (N) does the
oor now exert on the
block?
(c) If the free-hanging weight is replaced with a 20 kg weight, what force (N) does the

oor exert on the block?

  • physics -

    We will be glad to critique your thoughts.

  • physics -

    the following system (fig1) is in epuilibrium in the system a block of m=9 kg is attaehed the ceiling by two massless ropes are 45 of each two

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. physics

    A light rope is attached to a block with a mass of 6 kg that rests on a horizontal, frictionless surface. THe horizontal rope passes over a frictionless, massless pulley, and a block of mass m is suspended from the other end. When …
  2. physics

    A light rope is attached to a block with a mass of 6 kg that rests on a horizontal, frictionless surface. THe horizontal rope passes over a frictionless, massless pulley, and a block of mass m is suspended from the other end. When …
  3. Physics

    I have a question 26. A box weighing 85 N rests on a table. A rope tied to the box runs vertically upward over a pully and a weight is hung form the other end. Detrmine the force that the table exerts on the box if the weight hanging …
  4. Physics

    Two blocks are positioned as shown below. block A has a mass of 15 kg and hangs on one end of a cable that passes over a frictionless and massless pulley. The other end of the pulley is attatched to block B which has a mass of 10 kg. …
  5. Physics

    Two blocks are positioned as shown below. block A has a mass of 15 kg and hangs on one end of a cable that passes over a frictionless and massless pulley. The other end of the pulley is attatched to block B which has a mass of 10 kg. …
  6. Physics

    A 4 kg block rests between the floor and a 3 kg block. The 3 kg block is tied to a wall by a horizontal rope. If the coefficient of static friction is 0.800 between each pair of surfaces in contact, what force must be applied horizontally …
  7. physics

    011 (part 1 of 5) 10.0 points Two objects are connected by a string of negligible mass. The 12 kg block is placed on a smooth table top 2.4 m above the floor, and the 9 kg block hangs over the edge of the table. The 9 kg block …
  8. physics

    Starting from rest, a(n)9 kg block slides 9.7 m down a frictionless ramp (inclined at 30◦ from the floor) to the bottom. The block then slides an additional 23.5 m along the floor before coming to stop. The acceleration …
  9. maths

    A rope AB attached to a small block of neglible dimensions and passes over apulley C so that its free end hangs 1.5 metres above ground. When block rests on the floor. The end A of the rope is moved horizontally in astraight line by …
  10. physics

    A light rope is attached to a block with a mass of 10 kg that rests on a horizontal, frictionless surface, and a block of mass, m, is suspended from the other end. The tension in the rope is 20 N when the blocks are released. a) What …

More Similar Questions