PHYS 1P21/1P91
Test 1 Solutions
1. Alice walks along a straight road aligned
East-West, where East is taken to be the positive
direction. Her position-time graph is shown.
(a) Determine Alices velocity at t = 1.0 h, t =
2.5 h, and t = 5.0 h. [3 points]
(b
Chapter 4: Forces and Newton's Laws of
Motion
Tuesday, September 17, 2013
10:00 PM
In the first three chapters of this course the emphasis is on kinematics, the
mathematical description of motion. In Chapters 4 and 5, the heart of the course,
we shift the
P2.51 Gate AB in Fig. P251 is 1.2 m long and 0.8 m into
the paper. Neglecting atmospheric pressure, compute
the force F on the gate and its centerofpressure
position X.
Solution: The centroidal depth of the
gate is
hCG = 4.0 + (1.0 + 0.6)sin40° = 5.028
BROCK UNIVERSITY
Final Exam: June 2014
Course: PHYS 1P21/1P91
Examination date: 14 June 2014
Time of Examination: 9:0012:00
Number of
Number of
Number of
Instructor:
pages: 10 (+ formula sheet)
students: 88
hours: 3
S. DAgostino
A formula sheet is attache
PHYS 1P21/1P91
Test 2 Solutions
22 May 2014
1. An object is released from rest at the top of a frictionless ramp that is inclined at an angle of 23 to
the horizontal.
(a) Determine how far the object moves along the ramp after 1.5 s. [2 points]
(b) Determ
PHYS 1P21/1P91
Test 3 Solutions
5 June 2014
1. State whether each statement is TRUE or FALSE, and then briey explain (and if necessary, correct)
each statement. [8 points]
(a) Two objects move vertically upwards at constant speeds, but the speed of Object
Chapter 5: Applications of Newton's laws
Tuesday, September 17, 2013
10:00 PM
General strategy for using Newton's second law to solve problems:
1.
2.
3.
4.
5.
Draw a diagram; select a cordinate system
Identify relevant objects/agents
Sketch an interaction
Chapter 6: Circular Motion, Orbits, and
Gravity
Tuesday, September 17, 2013
10:00 PM
Circular Motion
rotational kinematics
angular position measured in degrees or radians
review of angle measure in degrees and radians; remember that the radian is a
"unit
Chapter 7: Rotational Motion
Tuesday, September 17, 2013
10:00 PM
(Omit 7.6, Rolling Motion)
The fundamental idea of Newtonian dynamics is that "things happen for a reason;"
to be more specific, there is no need to explain rest or motion in a straight lin
Chapter 9: Momentum
Tuesday, September 17, 2013
10:00 PM
In this chapter and the next one, we'll explore alternative perspectives to Newton's
second law. The concepts of momentum and energy provide pathways into deeper
understandings of Newtonian mechanic
Sunday, September 01, 2013
1:43 PM
Brock University
PHYS 1P21/1P91
Mechanics and Introduction to Relativity
Course Overview
_
Overview of Mechanics
Core theories of mechanics:
Quantum
Field
Theory
(1920s -1970s)
Quantum
Mechanics
(1926)
Relativistic
Mecha
Chapter 2: One-Dimensional Motion
Saturday, September 07, 2013
9:41 PM
In the previous chapter we began to study the key concepts of kinematics (position,
displacement, velocity, speed, acceleration, and time), mainly using motion diagrams as
a concrete r
Chapter 3: Vectors and Motion in Two
Dimensions
Tuesday, September 17, 2013
10:00 PM
Vectors are useful for describing physical quantities that have both
magnitude and direction, such as position, displacement, velocity,
acceleration, force, and many othe
Experiment 2: Angular Motion
Student
First Name
Last Name
Brock email
Date of the Lab
Experimental data
mass
0.010
0.015
0.020
0.025
0.030
0.035
0.040
0.04
a1 (m/s2)
a2 (m/s2)
<a> (m/s2)
Table 1: Acceleration data for unloaded cradle assembly
Ic
= (formul