Physics 160 Angular Kinematics
Practice Problems
1. Which of the following is not a unit of angular displacement?
a. radian
b. revolution
c. degree
*d. watt
e. All of the above are units of angular displacement.
2. An angle formed between two segments wou
Physics 160 - MC Practise for Test 1
1. A pole-vaulter clears a crossbar set at 16 ft 5 in. How high is this
in centimeters?
Correct Answer:
500 cm
2. A runner finishes a marathon in 2 hr 58 min and 17 s. How many
seconds did it take him to run the marath
Physics 160 Biomechanics
Kinematics Problems
1) An object moving on the +x axis experiences an acceleration of 2.0 m/s2. This means the object is
1) _
A) traveling at 2.0 m in every second.
B) increasing its velocity by 2.0 m/s in every second.
C) changin
Physics 160 Biomechanics
Describing Human Motion
1. Which plane is perpendicular to the longitudinal axis?
a. frontal
b. sagittal
*c. transverse
d. oblique
e. vertical
2. A person riding a bicycle forward in a straight line would be moving in the
a. trans
Physics 160 - Chapter 4 multiplechoice practise problems
1. Jill's bocci ball rolls with a velocity of 1 m/s, while Jack's rolls
with a velocity of 2 m/s in the same direction. Both balls have the
same mass. A 10 N average force stops Jill's ball in a dis
Physics 160 - Chapter 5 Multiplechoice practise problems
1. The moment arm is defined as
a. the distance from the point of application of a force to a
specified axis of rotation
b. the distance from the line of action of a force to a specified
axis of rot
Physics 160 Work and Energy
problems
1. The capacity for doing work that a body
possesses because of its height or position is called
what?
A. potential energy
b. kinetic energy
c. moment of inertia
d. mechanical power
Hall - 012 Chapter. #17
2. Energy of
Physics 160 Vectors and Projectiles
1) A soccer ball is kicked with a velocity of 25 m/s at an angle of 45 above the horizontal. What is the vertical
component of its acceleration as it travels along its trajectory? 1) _
A) (9.80 m/s2) upward
B) (9.80 m/s
Physics 154
Tutorial 2-D Dynamics
1. The 45 kg block below is pulled and accelerated over a rough (k = .44) horizontal surface.
F = 240 N
25
a) Find the acceleration
b) Find the force required to pull it at 2.8 m/s2 .
2. The 85 crate below is carried hori
Physics 154 Review Exercises - Kinematics Part A 1. A car accelerates uniformly from 5.0 m/s to 40.0 m/s in 1 min. Find the acceleration. 2. Determine the acceleration of a car which decelerates from 92 km/h to 30.0 km/h in 20 s.
3. A car, initially trave
Physics 154
Rotational Motion Summary
Linear Motion
Rotational Motion
Kinematics:
d or s
=
s
r
=
v=
d
t
=
vt
r
a=
v
t
=
at
r
m
t
t
=
Dynamics:
F
- Causes motion
(acceleration)
I
- Resists acceleration
- Causes rotation
(ang .acceleration)
- Resists rotati
Physics 154 Tutorial Rotational Motion (Review Exercises) 1. Write out the definitions for all of the rotational quantities. 2. Write the equations relating the angular quantities to the linear quantities. 3. Write down the equations for rotary motion wit
Physics 154
Tutorial Equilibrium
1. Three forces pull on a common point:
100 N at 32
72 N at 135
125 N at - 64
Find the fourth force required to balance these three.
2. A horizontally suspended rope is fixed at both ends. An 80.0 kg person then steps
onto
"
AN~WS:.eS
Physics154 Tutorial Exercises Torques,2-D Kinematics,2-D Dynamics -
.)
1. A 3.00m long massless restshorizontally againsta vertical wall. The far endis bar supported a string at 22 to the bar andconnected point on the wall above. by a An 85.0
Physics 155 Tutorial - Simple Harmonic Motion _ 1. A particle oscillates with simple harmonic according to the equation: x = (2.8 cm) sin(7.5/s)t a) Determine the frequency of oscillation and b) Express the velocity and acceleration as a function of time.
Physics 155 Tutorial - Waves _ 1. A traveling wave is described by the equation s = (45 mm) sin 3/m[x - (15 m/s)t] Determine: a) the speed and wavelength and period of the wave b) the amplitude, frequency of oscillation, and maximum velocity of the partic
Physics 154 Tutorial Work, Energy and Power _ Kinetic, Potential, and Total Mechanical Energy 1. A 22 kg crate is hauled 4.8 m across a rough floor against a 40 N friction force using a force of 180 N applied to a rope at 28 to the horizontal. Find the wo
Physics 154 - Tutorial Units Review _ 1. Express the following in proper scientific notation (using SI base units). a. 19 Mm b. 720 ns c. 45.0 cm3 d. 4.8 Mg e. 712 s f. 450 Mm g. 12 Mg h. 14 mm3 i. 2.5 g/cm3 2. Express the following in compact form (using
Physics 154 Tutorial - The Vector Product & Torques
1. The sphere is "pinned' at the center which is fixed on the origin of the coordinate system. The magnitudes of the two forces F1 and F2 applied to the edges of the sphere are equal. Find the direction
Physics 154 - Tutorial Vectors _ 1. Find the resultant of the following vectors in polar form.
B A
15 N 10.5 N
30
50
C
7.5 N 20
Check your answer with a rough scale diagram.
2. a) Find the x and y components of each vector in the following figure:
y
D 14.
Physics 160 Dynamics worksheet
1) Which of Newton's laws best explains why motorists should buckle-up? 1) _
A) the second law B) the law of gravitation
C) the third law D) the first law
2) When you sit on a chair, the resultant force on you is 2) _
A) dow
5. Which of the following is a correct unit of pressure?
Conepts in kinetics Key
a. Newtons
b. kg/cm2
C. N/cm2
d. slugs
1. Which of the following is not true about mass?
a. quantity of matter
B. changes depending on gravity
c. measurement unit = kg
d. aff
Physics 160 Biomechanics Equilibrium Problems
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers
the question.
1) What condition or conditions are necessary for static equilibrium? 1) _
A) Fx = 0, Fy = 0 B) Fx = 0, Fy
Physics 160 Test 1 3
January 27, 2014 i
Instructor: Dr. Juiie Alexander R
Time: 50 minutes E E
Total marks:32
1. Express the'following numbers in scientific notation:
a. 1 230 000 (1 mark)
l-LBXiOb
b. 0.000 304 (1 mark)
3 .OU/X (O 4
c. 367.9 km (remove
1
Physics 160 Torque Key
1. In the human body, most of the lever systems formed by muscles pulling on bones are what class?
a. 1st class
b. 2nd class
C. 3rd class
d. no particular class is dominant
Hall - 013 Chapter. #4
2. A 30 kg child sits on the right
Physics 160 Work and Energy worksheet
1) What is the correct unit of work expressed in SI units? 1) _
A) kg m2/s B) kg m2/s2 C) kg m/s2 D) kg2 m/s2
2) Can work be done on a system if there is no motion? 2) _
A) No, since a system which is not moving has n
Physics 154
Tutorial 2 Body Dynamics
1. For each system below, determine the acceleration and the tension in the string.
12 kg
5 kg
140 N
8 kg
Smooth Surface
Smooth Surface
3 kg
2. Two blocks are stacked on a rough surface.
10 kg
240 N
35 kg
The coefficie