Physics 1250, Dongping Zhong, Spring 2013 (Class ’ -)
Name
Recitation Instructor (circle one):
3. [6 points] Make and complete a process table that gives the values of different process variables (Qi
Physics 1250, Dongping Zhong, ipring 2013 (Class 1:50 pm)
Name
Recitation Instructor (circle one): Che White Flowers Li Hageman Bailey Buxton Obranovich
Mid Term 1 February 21, 2013, 7:40 PM 100 point
Physics 1250, Dongping Zhong, Spring 2013 (Class )
Name
Recitation Instructor (circle one):
QUIZ #3 February 7, 2013, 20 points, 25 minutes SCORE
Equations that might be useful are listed below: F y =
Physics 1250, Dongping Zhong, Spring 2013 (Class . pm)
Name
Recitation Instructor (circle one):
QUIZ 7 March 21, 2013, PM 20 points, 25 minutes SCORE
Use g=10 m/sz. Equations that might be useﬁil are
Physics 1250, Dongping Zhong, Spring 2013 (Class ‘ )
Name
Recitation Instructor (circle one):
QUIZ 8 April 4, 2013, 20 points, 25 minutes SCORE
Use g=10 m/sz. Equations that might be useful are listed
9/7/2016
Lecture 0302
Force and Motion
Bao Physics 1250 Fall 2016
A metal ball is dropped and hits the ground. When the
ball has penetrated well into the ground but hasnt yet
stopped, what is the rela
Physics 1250, Dongping Zhong, Spring 2013 ( )
Name
Recitation Instructor (circle one):
QUIZ#4 February 14, 2013, 7:40 PM 20 points, 25 minutes SCORE
Equations that might be useful are listed below: F
Lecture 21
A rigid body rotates along a fixed axis
s
=
(radian measure)
r
s = arc of the circle
* circumfere nce : s = 2r
* 1 rev : = 2 = 3600
3600
* 1 rad =
= 57.30
2
s = r
for = 1 rad
angular posit
Lecture 3
Motion in 1-D
Position x(t) set up coordinate system
Motion diagram
x-t diagram
dx(t )
Slope v(t ) =
dt
v-t diagram
dv(t )
a (t ) =
Slope
a-t diagram
dt
from a to v
from v to x
t2
v = aavg
10/7/2016
Lecture 0703
Momentum
Bao Physics 1250 Fall 2016
Identical constant forces F push identical Blocks A and B from
the start line to the finish line on a frictionless surface. Block A
is initia
10/5/2016
Lecture 0702
Momentum
Bao Physics 1250 Fall 2016
Suppose you are on a cart which is initially at rest that rides
on a frictionless track. You throw a ball at a vertical surface
that is firml
10/4/2016
Lecture 0701
Momentum
Bao Physics 1250 Fall 2016
Power:
P
dE
dt
The power of work done by a cosntant force
dW F dx
P
F v
dt
dt
Unit
P F v Nm / s J / s Watt (W )
1 hp 746 W
1
10/4/2016
Name: _
Due Date: 09/05/17
STUDY GROUP PARTNER(S):_
PHY 1250/OSU-Newark
Quiz #1: Chapters 1 & 2
You may use a calculator, but please show all work and relevant reasoning. Make sure that you report ans
Physics 1250, Dongping Zhong, Spring 2013 (Class )
Name
Recitation Instructor (circle one):
QUIZ 9 April 11, 2013, *r v 2‘ W 20 points, 25 minutes SCORE
Use g=10 III/52. Equations that might be useful
10/11/2016
Lecture 0801
Center of Mass
Rotation
Bao Physics 1250 Fall 2016
xcom
m1 x1 m2 x2
m1 m2
x1 x2
x
2
If m1 m2 , xcom
If m1 0, xcom x2
m x
m
i i
xcom
i
i
1
M total
m x
1
M total
m y ,
i i
i
i
Lecture 10
Static and Kinetic Friction (Chap5.8)
f s s N
f s _ Max = s N
f k = k N
Static and Kinetic Friction (Chap5.8)
Box A is stationary. An external horizontal force of 10 N is applied on the
box
Lecture 11
A baby falls from a tree onto the front windshield of Marys car
just as she drives underneath. The windshield is inclined at 600
with respect to horizontal, as shown below. Mary is horrifie
Lecture 12
Bill whirls a ball attached to a string in a horizontal plane
around his head. The string breaks exactly when the balls
velocity points in the direction of a tree trunk. Will the ball
conti
Lecture 13
Fred, a NASCAR driver, is traveling at 160 MPH (72 m/s)
around a track with radius 0.5 mile (800 m). Unfortunately, a
previous car blew its engine and there is oil all over the track,
reduc
Work:
Work done by a constant force
W = F x
Unit: 1 joule=1Nm=1 Kg m2/s2
Work done by a changing force
F = F (r ), dW = F dr
2
1 dim : dW = F ( x)dx W = F ( x)dx
1
Work done by constant forces
The b
Lecture 15
Work done by constant forces
The block is being pushed by F.
The block is initially stationary at x1.
F
=30
m1
x1
F=20 N,
x
x2
k=0.2, m1=5.0kg, x=5 m
What is the work done by F, f, and Fnet
Lecture 16
Spring Potential Energy
1
U s = k ( x x0 ) 2
or
2
1212
U 2 U1 = U 12 = W12 = kx2 kx1
2
2
12
U s = kx
2
(x-x0): displacement
x0=0
x1
x2
+x
A spring-loaded gun shoots a plastic ball with a sp