(for
Instructor
straight upward from a volcano. According to your stopwatch, it takes exactly econds use only)
for the lava to fall back to its initial point. Assuming no air drag:
(a) What is the ini
(for
W 9
3. You throw a baseball off the roof of a b ' ing, at an upward angle 60" I t
horizontal, and with a speed 0 7.5 11115 The ball hits the street below 50 seconds late nstrucl or
(See also the
(for
4. Consider the masses shown. Assume the table is frictionless Instmctor
(and very tall), the string is massless and non-elastic, and the
pulley is massless and fn'ctionless.
(a) For each mass, (
(for
Instructor
use only)
2. Vector math from physics denitions. A particles position vector at a given time t is
r(t) (2. 00171 + 3. 00 t2 4.00 3:3): + (1.00 g t)j.
Position T1 is measureds at time r
YOUR NAME: [LAST NAME , First name or nickname]
PH 201 SPRING 2017 (Gapud)
EXAM #1 :
FIFTY (50) MINUTES: Total 80 pts, plus 12 bonus points
Four quantitative problems 20 pts each
One bonus optiona
(for
Instructor
use only)
Frictionless,
massless pulley
95 My
1. e ure, blocks A and B have weights 42 N (1
@ i'espectively.
The static-iction coefcient #5 between A and the
table is 0.18.
m
2. The graph is of the acceleration of a 9y
car as its motor applies a force that mo - it
from rest along an x axis fromx= 0 to x= 9.0
m. The scale of the gure' 5 vertical axis is set
by as = 12.0 1
YOUR NAME: [LAST NAME , First name or nickname]
PH 201 SPRING 2017 (Gapud)
EXAM #2 :
FIFTY (50) MINUTES: Total 80 pts, plus 12 bonus points
Four quantitative problems 20 pts each
One bonus optional
d
k with mass m = 4.00 kg is launched up a
angle 6 = 30.0 by a spring that is initially
and then released from rest. (The block
3. In the gure, the bl
frictionless incline .-
separates fro
4. Solve the separate problems, (a) and (b) below. I
x
I Instructor
(a) In the gure, a very thin wire of uniform density it =
0.115 kg/m is bent into the shape shown. The vertical L I m, m; L;
lengths
(for
Solve problems 1 and 2 below.
Instructor
1. A wire with uniform density 7 (in kg/m) is bent into an L-shape as
shown, where L1= 1.00 m and L2 - 1 10 m. Using the coordinate axes _
_' (for
Solve problems 1 and 2 below. V _ 3 cfw_/3 y; Instructor
1. An ambulance is coming, so (like a good citizen ,op at the side of the road so it can pass use 011130
you. If the frequency of the a
(for
Solve problems 1 and 2 below. 7 Instructor
/
1. A block of mass M = 3.50 kg on a 'ictionless tabletop is +
connected by a massless cord over a pulley to a hanging block of
mass m
Quiz 1: Stopping Distance
Using your stopwatch, you determine that you can slow your car down, without skidding
(sliding), from 40.0 miles per hour to zero in 3.10 seconds.
1. Assuming acceleration is
Solve problems 1 and 2 below.
1. Softball pitcher Jennie Finch stands at the edge of a roof on a buildin ;@ 1,. have
V] the street below. From there, she throws a soball horizontally at a spec.
(for
Instructor
' use only)
Solve problems 1 and 2 below.
1. In the gure, two blocks are co ected by a massless string
hanging mass m = 5. g, and the system is initially in -
motion, calculate the t