Equations of Motion: Rectangular Coord

Select the answer for each of the following questions, then press "Mark" at the bottom of the page to receive feedback.
A pen and paper may be required to assist in the answering of some questions.
Questions beginning with "cont...." follow on from the previous question.

1) An inertial coordinate system can rotate with constant angular velocity.

One answer only.
   True
   False

2) A 10 Kg block rests on a smooth surface. On a sheet of paper draw the block's free-body diagram, establish the x,y coordinate system, and compute the block's initial acceleration.

a = ?

One answer only.
   0 m/s2
   2 m/s2
   5 m/s2
   10 m/s2
   None of the above

3) A 10 Kg block rests on a smooth surface. On a sheet of paper draw the block's free-body diagram, establish the x,y coordinate system, and compute the block's initial acceleration.

a = ?

One answer only.
   0 m/s2
   9.81 m/s2
   10 m/s2
   19.81 m/s2
   None of the above

4) A 10 Kg block rests on a smooth surface. On a sheet of paper draw the block's free-body diagram, establish the x,y coordinate system, and compute the block's initial acceleration.

a = ?

One answer only.
   0 m/s2
   5 m/s2
   15 m/s2
   20 m/s2
   None of the above

5) Calculate the acceleration of the 10 kg block A. Neglect the mass of the pulley.

a = ?

One answer only.
   0 m/s2
   4.905 m/s2
   9.81 m/s2
   19.62 m/s2
   None of the above

6) cont.... If a 20 Kg block (weight = 196.2N) was suspended from B to replace the 196.2 N force, what would the acceleration of block A be?

One answer only.
   Greater than 9.81 m/s2
   Less than 9.81 m/s2
   Equal to 9.81 m/s2

7) The 10 Kg block rests on a smooth surface and is acted upon by the force shown. Calculate its velocity when t = 1s. The block is initially at rest.

v = ?

One answer only.
   9.81 m/s
   10 m/s
   19.62 m/s
   None of the above

8) The collar has a mass of 10 Kg, and the coefficient of kinetic friction between the collar and rod is mk = 0.3. Select the equation of motion for the collar in the x direction from the list.

One answer only.
   98.1cos30 + 0.3Nc = 10a
   98.1sin30 - 0.3Nc = 10a
   98.1sin30 + 0.3Nc = -10a
   98.1cos30 - 0.3Nc = 10a
   None of the above

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