Name _
lab section _
Phys E-1a
Pre-Lab Questionnaire
Fall 2010
Experiment 3: Conservation of Energy & Projectile Motion
1.
In the lab handout, Equation [5], the range equation, does not contain g.
However, the equation for the range derived in lecture and
Expt 3: Conservation of Energy
and Projectile Motion
Physics E-1a
Fall 2010
Introduction
Preparation: Before coming to lab, read this lab handout and the suggested reading in
Giambattista (Chapter 6, sections 6.1 - 6.5). Then complete your Pre-lab Questio
Homework Assignment #5 Solutions
Physics E-1a
Fall 2011
1. The runner's work is positive, the wind's work is negative and ! PE = 0 . Therefore the runner's
work plus the wind's work equal a change in kinetic energy.
1
1
2
Frunner d ! Fwind d = "KE # Frunn
Name _
lab section _
Pre-Lab Questionnaire
Experiment 4 Fall 2010
1!Define the paintball plus pendulum bob as a system at the instant that the paintball
collides with the bob. Do any external forces act on this system? Illustrate your answer
using a free
Name _
lab section _
Pre-Lab Questionnaire
Experiment 5 Fall 2010
1. What is the relationship between rotational kinetic energy and angular velocity? For
comparison, what are the corresponding variables and equation for linear motion?
2. What is the relat
Pre-Lab Questionnaire
Experiment 2
Galileos Inclined Plane
1. Draw a free-body diagram for the ball in the illustration of your laboratory
apparatus shown in the handout. Show and label all forces acting on the ball. Add
them vectorially to find the net f
Physics E-1a
Expt 5a: Rotational Dynamics
Fall 2010
Introduction
Preparation: Before coming to lab, read this lab handout and the suggested reading in
Giambattista (through Chapter 8 especially sections 8.1, 8.6, 8.8, 8.9) and answer the
questions in the
Physics E-1a
Expt 4a: Conservation of Momentum and
The Ballistic Pendulum
Fall 2010
Introduction
Preparation: Before coming to lab, read this lab handout and the suggested reading in
Giambattista (through Chapter 7) and answer the questions in the Pre-Lab
Physics E-1a
Expt 2a: Galileo & Naturally Accelerated Motion
Fall 2010
Introduction
Preparation: Read this lab write-up, answer the questions in the Pre-Lab Questionnaire
and bring it to the lab (to be turned in at the beginning). Read the Lab Companion f
Physics E-1a
Expt 1: Measuring from a Distance
Fall 2010
Due Thursday, Sept 16, by 6 pm in your lab TAs mailbox
Introduction
There are many objects in the universe that simply aren't easy to measure. You can not go
out with a ruler and easily determine th
Physics E-1a
Homework Assignment #6 Solutions
Fall 2011
1. a) We solve this problem with the momentum form of Newtons second law.
"p
! F = "t , where ! p = m!v = (1.50kg )(0 " 4.00 m s) = "6 N # s
!6 N " s
Then F =
= !2400N
2.5 # 10 !3 s
b) No. There woul
Homework Assignment #4 Solutions
Physics E-1a
Fall 2011
1. (a)
(b) The velocity is constant so we know that the acceleration is zero a = 0
" Fy = FN !Fpush sin # ! Fgravity = ma = 0
! Fx =Fpush cos " # Ffr = ma = 0 we can find Fpush from this second equat
Homework Assignment #3 Solutions
Physics E-1b
Fall 2011
When solving many of the following problems carefully identify the forces that act on the object.
Then draw a free body diagram that includes all of these forces. The sum of the forces or the net
for
Physics E-1a
Homework Solutions #2
Fall 2011
1. From the displacement curve we find the velocities. The maximum value of the slope in
the first 5 seconds is about 22.5m 5s = 4.5m / s . The slope between 15 and 25 seconds is
about 30 m 11s = 2.7m / s .
Fro
Physics E-1a
Homework Solutions #1
Fall 2011
! x 12 km 12 km 60 min
=
=
"
= 40 km hr
!t 18 min 18 min
hr
(b) Velocity a vector equals the displacement divided by the time
10.3km 10.3km 60 min
or v =
=
!
" 35 km hr in a direction 250 SE
18 min
18 min
hr
1.