ConcepTest 3.4a
A small cart is rolling at
constant velocity on a flat
track. It fires a ball straight
up into the air as it moves.
After it is fired, what happens
to the ball?
Firing Balls I
1) it depends on how fast the cart is
moving
2) it falls behind

ConcepTest 2.8a
If the velocity of a car is non-zero
(v 0), can the acceleration of
the car be zero?
Acceleration I
1) yes
2) no
3) depends on the
velocity
ConcepTest 2.8a
If the velocity of a car is non-zero
(v 0), can the acceleration of
Acceleration I

ConcepTest 2.6a
Cruising Along I
You drive for 30 minutes at 30
1) more than 40 mi/hr
mi/hr and then for another 30
2) equal to 40 mi/hr
minutes at 50 mi/hr. What is your
average speed for the whole trip?
3) less than 40 mi/hr
ConcepTest 2.6a
Cruising Alo

ConcepTest 3.1c
Given that A + B = C,
and that lAl + lBl =
lCl , how are vectors
A and B oriented with
respect to each
other?
Vectors III
1) they are perpendicular to each other
2) they are parallel and in the same direction
3) they are parallel but in th