C hapter T wo P roblem Assignment
1. A weather rocket is launched w ith an acceleration of 100 ft/s^2. I f the
acceleration occurs for 30 seconds, how high is the rocket in feet? I n
m eters? I n miles?
Work :
Conversions 100ft/1s2 x 1mi/5280ft = 0.0189mi
Physics 211: Exam 1
1. Part A:
Answer: 125.4 m
Part B:
Answer:
2. Part A:
Answer : 47.2 inches
3. Part A:
F=
Answer:
Part B:
=
=
Answer:
4. Part A:
=
Answer: Lost about $53, 131.26
Part B:
1 slug = 14.59 kg
= 3.2808398 m
15.0 N = 15.0
= 15.0 x 1kg x 1m x
P roblem Assignment For Chapter 1
1. One of the equations that we w ill int roduce du r ing our study of
k inematics (the description of motion) is, v2 = vo2 +2ax where
x is the distance in meters, v is the speed in m/s, a is the
acceleration in m/ s2, an
Exam 1
Problem 1
Description: Anna walks 160 m due north, 50 m due east, and then 45 m due south.
Part A
W hat is the magnitude of her net displacement?
ANSWER:
Part B
W hat is the direction of her net displacement?
ANSWER:
Problem 2
Description: (a) How
Exam 2
Problem 1
Description: The figure shows an acceleration-versus-force graph for three objects pulled by rubber
bands. The mass of object 2 is 0.11 kg.
.
Part A
W hat is the mass of object 1?
ANSWER:
M1 =
Part B
W hat is the mass of object 3?
ANSWER:
Chapter 3 Problem Assignment
1. Work:
Sin 45=x15=10.6 m/s
Vo = 10.6 m/s
a = -9.8 m/s2
x=xo+Vot+12at2
0m = 0m + (10.6m/s)t + (-9.8m/s2)t2
0 = 10.6m/s t -4.9t2
4.9m/s2t2=10.6 m/s t
4.9m/s2 t = 10.6
t = 2.16 s
t = 2.16s/2
t = 1.08s
Answer: 1.08 s
2. Vo = 10