PHYSICS 9A
MIDTERM 1
May 2 , 2013
I certify by my signature below that I will abide by the UC Davis Code of Academic
Conduct. This includes
not copying from anyone elses exam
not letting any other student copy from my exam
not discussing this exam with
PHYSICS 9A
FINAL EXAM
June 10, 2013
I certify by my signature below that I will abide by the UC Davis Code of Academic
Conduct. This includes
not copying from anyone elses exam
not letting any other student copy from my exam
not discussing this exam wi
PHYSICS 9A
MIDTERM 2
May 30 , 2013
I certify by my signature below that I will abide by the UC Davis Code of Academic
Conduct. This includes
not copying from anyone elses exam
not letting any other student copy from my exam
not discussing this exam wit
QUIZ 1. Units & Vectors
1. The Mercedes A-class has a fuel consumption of
5.8 liters per 100 kilometers. What is the
corresponding value in miles per gallon? 1
mile=1.609 km, 1 gallon=3.78 liter
Solution.
5.8/100 liters/km=5.8/100 [1/3.78 gallon]/[1/1.609
QUIZ 3
Solution:
The ball does not accelerate along x axis. Therefore vx(t)=v*cos() and
x(t)=v*t*cos(). It travels distance L=22 m and the time to reach the wall is
t0=L/[v*cos()]=22/(25*cos(40)=1.15 s.
The y-component of the velocity and coordinate are
v
QUIZ 4
A cargo airplane carrying a heavy package is landing on the airport runway. The landing
speed of the plane is 200 km/h, and the length of the runway is 2 km.
1. Draw free body diagram for the package,
2. Determine the value of acceleration which br
Quiz
A solid cylindrical pulley with a mass of M = 10 kg and a
radius of r = 0.5 m is used to lower a bucket with a mass of
m = 2 kg into a well. Rotational inertia of the pulley is
given by 0.5Mr2. What is the linear acceleration of the
falling bucket?
S