The Laws of Motion
Concept Questions 1
In the absence of an external force, a moving object will A. B. C. D. move with constant velocity. stop immediately. slow down and eventually come to a stop. go faster and faster.
Concept Questions 2 A rocket moves t
Jim Guinns PHYS1111 Assignment #10 Solutions
1. A ball of mass 25.0g on a string is being twirled in a circle of radius 0.500m so that it goes
around once every 1.50s .
a.)
What is the ball's speed?
Using v = 2r/T we have
v = 2r / T = 2 0.500m / 1.50s =
v
Jim Guinns PHYS1111 Assignment #9 Solutions
s, k
m
1. In the diagram let m = 25.0kg , = 10.0o , s = 0.200 , k = 0.150 .
a.)
What is the normal force acting on the block?
We have that the normal force it given by
FN = mg cos = 25.0kg 9.80m/s2 cos10.0o =
FN
Introductory Physics I
\ PHYS 1111—100
Spring 2015
Exam #Z-A
Sections 4-6
Name .SQ ld£§é _ .—
You may use G = 6.673(10'11 N m2 / kg2 .
Make sure to show all your
work, and box your answers!
1. (10 points) A box of mass 24.0kg is at rest ’on the horizontal
Introductory Physics I
PHYS 1111-100
Fall 2013
Exam #ZA
Sections 4~6
Name Sazgg‘i‘I‘b S
You may use G = 6.672110"11 N m2 / kg2 .
Make sure to show all your
work, and box your answers!
1. (10 points) A 45.0N force pushes horizontally on a 13.0kg box Which
Introductory Physics I
PHYS 1111-100
Exam #1 - A
Sections 1-3
Fall 2015
' N.
Name_)O[gJ“)n¢ 5‘ .—
Show all your work on these sheets, and make sure to box your answers!
1. (10 points) How many signiﬁcant digits do each of the following numbérghave?
c) @90
Introductory Physics I
PHYS 1111—100
Exam #1 - A
Sections 1-3
Spring 2015
Name w 3) m4“
Show all your work on these sheets, and make sure to box your answers!
1. (10 points) HOW many signiﬁcant digits do each of the following numbers have?
51-) 1229.99. E
a:
Introductory Physics I
PHYS 1 I 1 1—100
Fall 2015
Exam #2A
Sections 4-6
Make sure to show all your
Name , SOIL) 1%!
work, and box your answers!
You may use G = 6.67111011 N 1112/ kg2 . A/
1. (10 points) A 2.75kg block slides on a horizontal surface wit
PHYS 1111 UNIT ONE HOMEWORK PROBLEMS
Thefollowinginstructionsappliestothisandtheotherhomeworksets:
Youhave5attemptsatgettingthequestionscorrect.
Answersaresubmitted"quizstyle"usingthenextlinkintheunitfolder,onceyou
havefiguredouttheanswersusingthisworkshe
Jim Guinns PHYS1111 Assignment #8 Solutions
1. a.) What is the gravitational force of attraction between the Earth and Sun? (The EarthSun distance and the necessary constants are on the inside your textbook.)
Using Newton's Law of Gravity and the constant