Physics 203
Recitation Quiz 1 Solution
1. Use dimensional analysis to derive an equation for energy, E , in terms of mass, m, and
speed, c. (Note: show all work.)
Hint: Energy = mass acceleration distance
[E ] = [M ] [L][T ]2 [L] = [M ][L]2 [T ]2
[c] = [L
Physics 203, Section 6
Recitation Quiz 6 Solution
1. Suppose that a horizontal force of 0.800 N is required to pull a 2.00-kg block across a table
at constant speed. Now, a 10.0-g bullet is red at a speed of 560 m/s into the stationary
block, passes compl
Physics 203, Section 6
Recitation Quiz 5 Solution
1. A man is loading 100-pound drums on a truck by rolling them up a ramp. The truck bed
is 3 feet above the street and the ramp is 6 feet long.
(a) What is the average force required to lift the drums stra
Physics 203, Section 6
Recitation Quiz 4 Solution
1. Three blocks are in contact with each other on a frictionless, horizontal surface (see gure).
A horizontal force F is applied to m1 . Take m1 = 2 kg, m2 = 4 kg, m3 = 6 kg, and
F = 24 N.
(a) Draw a separ
Physics 203, Section 6
Recitation Quiz 2 Solution
1. A ball is projected upward from the level ground at an angle of 30
with the horizontal.
(a) (5 points) What is the initial speed, v0 , of the ball if it takes
1.0 s for the ball to reach its maximum hei
Physics 203, Section 6
Recitation Quiz 3 Solution
1. A ball is projected downward at an angle of 30 with the horizontal from the top of a
building 170 m high. Its initial speed is 40 m/s.
(a) Draw a picture of this situation indicating the direction and m
Physics 203, Section 6
Recitation Quiz 7 Solution
1. (6 points) A puck attached to a string moves in a circular path on a frictionless surface,
as shown in the gure. Initially, the angular speed of the puck is i and the radius of
the circular path is r .
Physics 203, Section 6
Recitation Quiz 8 Solution
1. A particle moving along the x-axis in simple harmonic motion starts from its equilibrium
position, the origin, at t = 0 and moves to the right. The amplitude of its motion is
3.0 cm, and the frequency i
Physics 203, Section 11
Recitation Quiz 10 Solution
1. A glass beaker of water is on a balance. A metal ball is hung from the edge of the beaker
but outside the beaker. The weight of everything is recorded. The ball is now put inside
the beaker hanging fr
Physics 203, Section 6
Recitation Quiz 10 Solution
1. You are in a boat on a perfectly calm lake.
(a) Theres an anchor in the boat. You drop the anchor overboard and it sinks to the
bottom of the lake. During this process, does the level of the lake rise,
Physics 203, Section 11
Recitation Quiz 9 Solution
1. A guitar string is stretched from point A to point G (see gure). Equal intervals: A, B ,
C , D , E , F , G, are marked o. Paper riders are placed on the string at D , E , and F .
The string is pinched
Physics 203, Section 11
Recitation Quiz 8 Solution
1. A particle moving along the x-axis in simple harmonic motion has a position as a function
of time given by, x(t) = (8.0 cm) sin (0.25 Hz)t). Find:
(a) the amplitude and period of the motion
The amplitu
Physics 203, Section 6
Recitation Quiz 9 Solution
1. (a) You are emptying a glass tube lled with liquid. As the liquid runs out it makes a
gluug gluug gluug sound. As the tube becomes empty, the frequency of the sound
i. gets lower
ii. does not change
iii