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
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
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
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 quanti
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 i
"
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
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) Expre
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, frequ
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
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.
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
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 com
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 stac
Physics 154
Practice Final Exam
1. a) Given the vectors in the figure below, find A + B C in polar form.
y
_
A
12.0 N
50o
x
30o
_
C
8.0 N
_
o B
20
15.0 N
b) For the following two vectors:
d = 275 m at
Physics 154 Tutorial Torques and Equilibrium
1. For the 1 m long, 5 N beam below find the balancing mass m and the supporting tension T.
m T 2 kg
0
25 cm
1m
2. A 6.0 kg board rests on two supports, on
Physics 154
Tutorial - Work, Energy and Power
_
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. Fi