Lab 4: Combining Forces
Group Members
Objective
The purpose of this lab is to look at what happens when multiple forces act on an object and how
they affect the motion of that object.
Equipment
Force
Lab 2 Uncertainty!
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Objective!
The purpose of this lab is to introduce the concept of uncertainty in physical measurements.!
Every measurement has an amount of uncertainty associated with it. The u
Lab 4 Atwoods Machine!
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Objective!
The purpose of this lab is to measure the acceleration due to
gravity using the Atwoods machine. The Atwoods machine is
a gravity driven device so the acceleratio
Lab 1 Vectors!
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Objective!
The purpose of this lab is to practice applying the concept of vectors to physical situations.!
We are going to balance several forces and test to see if the total force
Lab 3 Acceleration!
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Objective!
The purpose of this lab is to measure the accelerations of an object as it undergoes complex
motion. We will also attempt to see if apparent free-fall motion actuall
Lab 5 Newtons Second Law
Group Members
Objective
The purpose of this lab is to explore the precise relationships in Newtons second law of motion.
Equipment
Cart, track, pulley and weights with motion
Lab 1 Post Lab
Group Members
1. What do you do in front of the motion sensor to produce a
horizontal line for the position-time graph?
Answer. You remain stationary.
position
Position-Time Graph
time
Homework 14 (due monday 12/8/14)
The practice problems are here for you to familiarize yourself with the denitions.
Practice Problems Chapter 10
12, 13, 16, 17, 32, 47, 51, 55, 57, 61, 72
Practice Pro
Final Solution
Question 1
a
A 500 g cart is pulled by a 100 g hanging mass that is
to be stopped by a spring. The process is split into
three states. At state a, the objects are released
from rest. At
Homework 13 Solution
Practice Problems Chapter 9
5, 6, 13, 14, 15, 17, 22, 25, 32, 32, 34, 37, 39, 42, 70, 71, 80
Homework Problem
You throw a 200 g rubber ball down from a height of 2 meters at a spe
Homework 9 (due Monday 11/3/14)
Practice Problem Chapter 6
21, 22, 25, 26, 28
52, 55, 56, 58, 59, 61, 62, 63, 64
76, 85, 95, 100, 105, 107
Homework Problem
A 1,500 kg car needs to go around a banked a
Homework 11 Solution
Homework Problem
A 50 kg skateboarder is released from rest at the top of a frictionless ramp 8 meters above the
bottom.
r=3m
h
v
a. How many forces act on him on his way down?
b.
Homework 7 (Due Wednesday 10/22/14)
Homework Problem
You are standing in a train that has a rough interior oor. You are holding a rope that is attached
to the ceiling of the train. The train is travel
Exam 1 Solution
Question 1
An object travels with a velocity that changes from +10 m/s to 10 m/s linearly in 5 seconds. The
graph of that motion looks like this.
v
10 m/s
5s
t
10 m/s
a. Plot the accel
Homework 5 Solution!
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!
Homework Problem!
A cannon res a cannonball at a speed of 30 m/s at an angle of 55 above the horizon. By speed
I mean the magnitude of the velocity.!
a.! At what time(s) after
Homework 3 Solution!
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!
Homework Problem!
A sprinter starts at rest from the starting line and runs a 100 m dash in 10.0 seconds. We are
going to model this in two different ways.!
One Acceleration M
Exam 2 Solution
Question 1
You slide a glass of water whose total weight is 20 newtons down a rough counter. The coefcient
of kinetic friction between the glass and the counter is 0.4. You push the gl
Exam 3 Solution
Question 1
A 1 kg block is launched using a 500 N/m spring on
a frictionless surface. It slides off of a 1.5 meter high
edge and lands 3 meters from the edge.
A
a. How much kinetic ene