Preview

Nt1310 Unit 4

Good Essays
Open Document
Open Document
313 Words
Grammar
Grammar
Plagiarism
Plagiarism
Writing
Writing
Score
Score
Nt1310 Unit 4
1) Block B in Fig. 6-31 weighs 603 N. The coefficient of static friction between block and table is 0.32; angle θ is 33°; assume that the cord between B and the knot is horizontal. Find the maximum weight of block A for which the system will be stationary.

Fig. 6-31
A)150 N B)175 N C)125 N D)200 N

2) In Fig. 6-33, two blocks are connected over a pulley. The mass of block A is 7.8 kg and the coefficient of kinetic friction between A and the incline is 0.13. Angle θ of the incline is 44°. Block A slides down the incline at constant speed. What is the mass of block B?

Fig. 6-33

A)4.69g B)5.69g C)5.0g D)6.0g

3) In the figure here, block 1 of mass 2.0 kg and block 2 of mass 2.9 kg are connected by a string of negligible mass

You May Also Find These Documents Helpful

  • Good Essays

    Weigh the two friction blocks in kilograms. Then multiply that number by g, 9.8, to find the blocks’ weights in Newtons and record it.…

    • 471 Words
    • 2 Pages
    Good Essays
  • Good Essays

    Nt1310 Unit 5

    • 368 Words
    • 2 Pages

    the ratio of resistors on one side of the bridge is one while the ratio of resistors on the other side is infinity…

    • 368 Words
    • 2 Pages
    Good Essays
  • Better Essays

    Nt1310 Unit 4

    • 3614 Words
    • 15 Pages

    The program is trying to collect the value of a "void" function into an integer variable.…

    • 3614 Words
    • 15 Pages
    Better Essays
  • Good Essays

    Lab Reports

    • 936 Words
    • 4 Pages

    Data
Table
1
‐
Masses
of
Objects
 Mass
of
the
Wood
Block
=

 0.064139
 Mass
of
one
small
paperclip
=
 0.003052
 Mass
of
one
large
paperclip
=
 0.000422
 Mass
of
the
hanger
=
 

 0.00500
 
 kg
 kg
 kg
 kg…

    • 936 Words
    • 4 Pages
    Good Essays
  • Powerful Essays

    Friction was studied in this lab. The experiments were conducted using a clipboard glued to various surfaces with diffirentiating frictional properties. In order for us to test the varying Static friction or Kinetic friction we used a Newton force gauge, some wooden blocks, and a metal weight. The actual experiment consisted of two parts. The first part measured the net force, or more specific the net force required to overcome the kinetic friction coefficient, to move the block across the frictional surfaces (the Clipboard itself, cork, rubber, and sandpaper). The second used inclined angles and the length of the clipboard to measure the static friction coefficient using the equation Tan(N0)= MuStatic.…

    • 511 Words
    • 2 Pages
    Powerful Essays
  • Good Essays

    IA LAb Write UP

    • 537 Words
    • 3 Pages

    7. If sandpaper were glued to the bottom of the block then, the coefficient of friction would increase because its a different surface and also because the force of friction is increasing.…

    • 537 Words
    • 3 Pages
    Good Essays
  • Satisfactory Essays

    A man pushes the 40 kg machine with mass centre at G up an incline at a steady speed. Determine the required force magnitude P and the normal reaction forces at A and B. Neglect the small effects of friction.…

    • 1479 Words
    • 6 Pages
    Satisfactory Essays
  • Good Essays

    Coefficient of Friction

    • 852 Words
    • 3 Pages

    The purpose of the experiment was to determine to coefficient of friction on a block sliding across a horizontal plane, and on the same block sliding down an inclined plane. This was done by first testing block, and how much weight on a string was needed to move the block at a constant velocity using a pulley system. The block weighed 0.2385 kilograms, and needed a hanging mass of 0.05 kg to move at a constant velocity. This means the coefficient of friction is 0.37. The second block was tested on an inclined plane, and the angle was found at which the block would move at a constant velocity. The angle found was 230. Using the equation μk=tan θk we found the friction to be 0.42. The friction was different because there was more force required to keep the block sliding down the plane at a constant velocity.…

    • 852 Words
    • 3 Pages
    Good Essays
  • Good Essays

    1.A) Show by kinematic analysis that the angular acceleration of connecting rod BD is 1328.5 rad/s2 1.B) Show by kinematic analysis that the acceleration of the mass center G of connecting rod BD has the horizontal and vertical components of acceleration aGx = 188.60 m/s2 and aGy = 249.42 m/s2; respectively. 1.C) Draw clearly the FBD = EFD diagram for the connecting rod BD. Label all points and vectors properly. 1.D) Determine the force acting at point B. 1.E) Determine both the horizontal and vertical components of the force acting on the bar BD at hinge D. PROBLEM NO.2 A uniform slender bar AB of mass m is suspended as shown from a uniform disk of the same mass m. Neglecting the…

    • 1776 Words
    • 8 Pages
    Good Essays
  • Good Essays

    04 Newton S Laws Of Motion

    • 1538 Words
    • 15 Pages

    m1a + µ kW1 ⎛ 1.4 N ⎞ 2 1 m / s + (0.3)(1.4 N ) T =⎜ ⎟ 2 ⎝ 9.8m / s ⎠ T = 0.562857 N FBD2: (counterweight) Example 5 Consider the system below. Mass A has a weight of 1.40N while mass B has a weight of 4.20N The coefficient of kinetic friction of all surfaces is 0.3.…

    • 1538 Words
    • 15 Pages
    Good Essays
  • Satisfactory Essays

    Place a 2 kg mass on the plate. Determine the frictional force necessary to rotate the top plate at a constant speed. Put another 2kg mass on the top plate. Determine the frictional force necessary to rotate the top plate at the same steady constant speed as before.…

    • 382 Words
    • 4 Pages
    Satisfactory Essays
  • Good Essays

    A 200-mm-diameter pulley is prevented from rotating relative to 60-mm-diameter shaft by a 70-mm-long key, as shown in Fig. P-118. If a torque T = 2.2 kN·m is applied to the shaft, determine the width b if the allowable shearing stress in the key is 60 MPa.…

    • 465 Words
    • 2 Pages
    Good Essays
  • Good Essays

    For the first trial, the net force changes when the mass of the mass hanger changes. The net force, N, is obtained by the equation of m2g, where m2 represents the hanging mass, and g is the constant gravitational pull, which is 9.8m/s2. The results of part A can be seen in the table below.…

    • 1337 Words
    • 6 Pages
    Good Essays
  • Satisfactory Essays

    Statics

    • 519 Words
    • 3 Pages

    From the result of Part (b), the maximum force to prevent downward motion is 1335 N which is less than 1780 N. The force P therefore is pushing the block up the incline, thus, friction will act downward as shown below.…

    • 519 Words
    • 3 Pages
    Satisfactory Essays
  • Good Essays

     2  b (x  ) 2 h Sliding Friction Compression of a Block b  2  b  P  2    Therefore, ln  2k   h  x  2 …

    • 2035 Words
    • 24 Pages
    Good Essays