Discussion Section 5: Circular Motion - Solutions
I: Velocity
An object is moving around an oval track. With your group, sketch the trajectory of the
object on your whiteboard. Make your diagram large
Physics 41
Mechanics
Problem Set 3
Newtons 1st and 2nd Laws; Static and Dynamic Equilibrium
Written parts (14) are due by 6 p.m. Fri., Jan. 25, in your TAs mailbox in Hewlett.
The MasteringPhysics por
Physics 41 Problem Set 5 - Challenge Problems
Jae Hwan Kang
January 31, 2013
1
Ch.8 Problem 59
In the absence of air resistance, a projectile that lands at the elevation from which it was launched
ach
Physics 41
Mechanics
Problem Set 2
Kinematics in One Dimension
Written parts (14) are due by 6 p.m. Fri., Jan. 18, in your TAs mailbox in Hewlett.
The MasteringPhysics portion (item 5) is due online
Problem Set 2 Solutions
Alborz Bejnood, Byungwoo Kang
Stanford University
January 20, 2013
1
Moon Astronaut
Part (a) The velocity of the rock at time t is dependent on both the initial upward velocity
Week 2
Challenge Problem
Exercise: Find a combination of c, h, and G that has dimensions of length
(call this length lP ), of time (tP ), and of mass (mP ).
2
L
L3
Solution: We began with the constant
Physics 41 Problem Set 3 Solutions
1
Object Under Forces
Figure 1: Free body diagram for 1a.
b) Initially at time t = 0, the object is at rest. Therefore its initial velocity is zero. v(0) = 0
The obj
Physics 41
Mechanics
Problem Set 1
Dimensions; Kinematics in One Dimension
Written parts (1, 2, 3) are due by 6 p.m. Fri., Jan. 11, in your TAs mailbox in Hewlett.
The MasteringPhysics portion (item
Discussion Section 9: Potentials and Conservative Forces
Consider the following graph of potential energy U (x) versus position x for a one dimensional system in which all forces are conservative; i.e
Part B Written Problems - 48 Points Total
1. (24 points) Consider a completely inelastic collision between two hacky sacks on a
frictionless table top. According to a student sitting at the table, hac
Discussion Section 10: Rotational Motion II
For reference, some common moments of inertia:
Cylindrical hoop or ring, about center: M R2
1
Solid cylinder or disk, about center: 2 M R2
Solid sphere,
Discussion Section 10: Rotational Motion II
For reference, some common moments of inertia:
Cylindrical hoop or ring, about center: M R2
Solid cylinder or disk, about center: 1 M R2
2
Solid sphere,
Discussion Section 9: Potentials and Conservative Forces
Consider the following graph of potential energy U (x) versus position x for a one dimensional system in which all forces are conservative; i.e
Discussion Section 4: Friction, Pulleys, Tension
Part I
Discussion Section 4: Friction, Pulleys, Tension
Part I.
1. A block is given a small push to get it moving down a ramp that has some friction.
1
Discussion Section 8: Springs, Work, and Energy
I: Springs
1. A spring can be stretched by 6cm compared to its equilibrium length with an applied
force of F = 1N to the right. What is its spring const
PHY41 Problem Set 3 - Challenge Problems
Andrei Kamalov
January 21, 2013
problem 6.66
part a
Terminal speed implies that an object in free-fall has attained a speed that
cannot be exceeded due to drag
Pat Burchat, January 2013
Physics 41 Problem Set 2 Challenge Problem
Fundamental Constants of Nature and Plancks Units
The challenge problem is optional and will not be graded.
1
Three Fundamental Con
PHYSICS 41- Problem Set 4 Solutions (Final)
Jake How, Lampros Lamprou
February 3, 2013
1
Problem 1
We call the vertical axis z and we choose the positive direction to point upwards.
The forces are sho
Physics 41
Mechanics
Problem Set 10
Moment of Inertia; Rotational Energy
Static and Dynamic Equilibrium
Written parts (1-3) are due by 6 p.m. Fri., March 15, in your TAs mailbox in Hewlett.
No late p
Problem Set 9 Challenge Problem
Lucas Peeters, [email protected]
March 2, 2013
1
Relativistic energy
The second-order Taylor expansion around x = 0 for any well-behaved function f (x) is
1
f (x) f
PH 41 W13- Problem set 10 Solution Draft
Emperor Jiecheng Zhang, Andrei Kamalov (with some edits by Pat Burchat)
March 15, 2013
1
Door on Hinges
(a) Extended free body diagram
(b) For the rest of this
Pat Burchat, March 2013
Physics 41 Problem Set 9 Challenge Problem
This challenge problem is optional and will not be graded. If you are interested in
learning more about Einsteins Special Theory of R
Physics 41 Winter 2013 Homework 9
Alexander Hristov, Yajie Yuan
March 3, 2013
Problem 1
Part (a)
As directed, I begin with
Ug =
The key step is to rewrite the denominator as RE (1 +
Ug =
GMe m
.
RE
PHYSICS 41- Problem Set 8 Solutions
March 1, 2013
1
Problem 1
(a) Before the impact of the meteor, the relevant forms of energy are the gravitational potential
energy of the meteor Ug , and the kineti
Physics 41
Mechanics
Problem Set 9
Power; Conservative Forces
Torque; Center of Mass; Static Equilibrium Revisited
Before tackling problem 3 below and the last assigned MasteringPhysics problem (Perso
Physics 41
Mechanics
Problem Set 7
Kinetic and Gravitational Potential Energy; Collisions
Written parts (13) are due by 6 p.m. Fri., Feb. 22, in your TAs mailbox in Hewlett.
The MasteringPhysics porti
Physics 41
Mechanics
Problem Set 8
Elastic Potential Energy; Work
Written parts (1-3) are due by 6 p.m. Friday, March 1, in your TAs mailbox in Hewlett.
The MasteringPhysics portion (item 4) is due on