TEST

1
TEST Thursday at 7pm

• The test will cover things we have done in class
  up to Lecture 9 (Chapter 1,2,4,5.1-5.4, 5.6,
  6.1-6.3 and 8)
• Momentum will NOT be on the test
• Please look over old test (available online)
• Make sure youre up on your reading !
• Review error calculations (done in lab)
• Look over CAPA problems (the easier ones!)
• This test is worth 15 of your mark
• There are 15 multiple choice questions on the test

2
TEST

• Bring
• your student card
• your calculator
• pen or pencil
• please wait for TAs to let you in the room
• if youre not sure about a question ASK !!!
• remain quite near the end other will still be
  writing!
• do easier questions first, then go back

3

• Kinematics average velocity, acceleration,
  vectors, displacement, dvt1/2at2, vvoat,
  v22v122ad, projectile motion
• Dynamics Free-body diagrams, forces SFma,
  friction, ramp and pulleys, vectors

4
Graphs of x(t), v(t), a(t)
x
t
v
t
a
t
5
Projectile Motion

• A plane if flying horizontally at 40m/s when it
  drops a package. If the package lands 181m ahead
  of the point above which it was dropped, when was
  it dropped and from what height ?

dv
dh
6
Friction

• You are pushing a 100kg fridge over a floor with
  µs0.5 and µk0.3 with a force of 290N. What is
  the magnitude of the frictional force between the
  fridge and the floor.

7
Another look at tension

• Two blocks are being pulled on a frictionless
  surface by a force Fa to the left. The mass of
  the first block is m and the one behind 5m. What
  is the tension between the blocks?

5m
m
Fa
8
Contact Force

• Two blocks, one of mass m1 and the other of mass
  m2 are being pushed by a force F on a
  frictionless surface.
• Determine their acceleration and the
  magnitude of the contact force.

m1
F
m2
9
Tension

• A mass m20.4kg is suspended by two ropes as show
  in the diagram below. ?160 and ?245. Determine
  the tension in the strings.

?2
?1
10
Inclines

• Find a.

m2
m1
11
Pulleys
Consider the more elaborate Atwoods machine
shown.
Assuming the rope and pulleys are ideal, the
relation between the accelerations will be
a2
12
More question to be added later (I had to go
home)