NAME:
Exam 3, Physics 141 S09
You may bring 3 4x6 index cards with whatever you want written on it.
I need your name on
each page of the exam
SHOW YOUR
WORK!
Useful Constants:
Acceleration due to gravity (g) = 9.8 m/s2
cos(45)=sin(45)=0.7, cos(30)=sin(60)
NAME:
Exam 1, Physics 141 S09
You may bring 1 4x6 index card with whatever you want written on it.
I need your name on
each page of the exam
SHOW YOUR
WORK!
Useful Constants:
Acceleration due to gravity (g) = 9.8 m/s2
cos(45)=sin(45)=0.7, cos(30)=sin(60)=
NAME:
Exam 1, Physics 141 S09
You may bring 1 4x6 index card with whatever you want written on it.
I need your name on
each page of the exam
SHOW YOUR
WORK!
Useful Constants:
Acceleration due to gravity (g) = 9.8 m/s2
cos(45)=sin(45)=0.7, cos(30)=sin(60)=
Quiz 5
Name: _
1) Write down the deni3on for a conserva3ve force
a forcepair between two objects whose value depends only on the rela3ve posi3ons of the
two objects
2) A large empty container is dropped from the
Quiz 9
Name: _
1) Write down the deni3on for a restoring force
A force that, for any small displacement from the equilibrium posi3on, is directed back
towards that posi3on.
2) Consider the atwood machine shown. Le
Quiz 5
Name: _
1) Write down the deni3on for the coecient of sta3c fric3on
a constant of propor3onality between the normal force and the fric3onal force for an object at
rest with respect to a surface. Scalar, unit
Quiz 3
Name: _
1) Write down the deni3on for unit vector
Unit vector: a vector with unit length
-4 )m. What is the magnitude D ? Circle all that
2) Consider a displacement vector D=(3 i j
are correct.
a ) 7 m b) 5 m c) -7 m d) -5 m
Quiz 8
Name: _
1) Write down the deni3on for torque
= rxF
2) A person weigh3ng 60 kg stands at the center of a symmetric boat weighing 500 kg
oa3ng on a fric3onless, currentless, s3ll pool as shown in the gure b
Quiz 2
Name: _
1) Write down the deni3on for instantaneous velocity
the deriva3on of posi3on with respect to 3me
2) The equa3on of mo3on for a par3cle is:
m
m2
x = 2m 7 t 4 2 t
s
s
What is the accelera3on of the pa
Quiz 5
Name: _
1) Write down the deni3on for perfectly inelas3c collision
when the two colliding par3cles s3ck together and stay together a=er the collision.
2) A ball of mass m bounces o a wall as shown below.
Quiz 4
Name: _
1) Write down the deni3on for Newtons rst law
when no net external force acts on an object, the accelera3on of the object is zero.
2) A boat wants to cross a river in the shortest amount of 3me.
Quiz 1
1) Write down the deni2on for displacement.
Displacement: change in posi2on. Final posi2on ini2al posi2on. Vector with mks units of m.
2 ) The units for time (t) is s, displacement (d) are m, velocity (v) are m/s, for