Physics 213
HW-10 SELECTED SOLUTIONS
Potential Energy Graphs and Motion
Learning Goal: To be able to interpret potential energy diagrams and predict the corresponding motion of a
particle.
Potential e
Physics 213
HW-04 SELECTED SOLUTIONS
TOPIC: PROJECTILE MOTION
Direction of Velocity at Various Times in Flight for Projectile Motion Conceptual Question
For each of the motions described below, determ
Physics 213 - Fall 2013; 10/09/2013
QUIZ 4 (20p+2p bonus)
Solution
t2
Impulse and Change in Momentum: J Fnet dt Fnet ,av t p p 2 p1
p mv
t1
Work done: by a (single) constant force: W F d Fd cos F d
Physics 213 - Fall 2013; 10/23/2013
QUIZ 5 (20p+2p bonus)
Mechanical Energy: E
mech
Solution
E kin E pot
pot
Potential Energy: Gravitational EG
m g h
mech
Work and Mechanical Energy: Ei
Work-Energy
Physics 213
HW-08 SELECTED SOLUTIONS
Understanding Work Done by a Constant Force
Learning Goal:
To explore the definition of work and learn how to find the work done by a force on an object.
When ener
Physics 213
HW-09 SELECTED SOLUTIONS
Exercise 6.19
Use the work-energy theorem to solve each of these problems. You can use Newton's laws to check
your answers. Neglect air resistance in all cases.
a)
Physics 213
HW-11 SELECTED SOLUTIONS
Topic: Collisions
Colliding Cars
In this problem we will consider the collision of two
cars initially moving at right angles. We assume that
after the collision th