PHY 204 General Physics
Solutions to Homework 4
(Chapter 5: Using Newtons Laws)
Problem 1
(a) The coefficient of kinetic friction k is always smaller than the coefficient of static friction s .
What w
PHY 204 General Physics
Homework 1
(Chapter 2)
Due Wednesday, September 7, at the start of lab. If you are unable to attend class, you
must let me know and turn in your assignment prior to due date/ti
PHY 204 General Physics
In-Class Practice Problems Chapter 3
Problem 1
Find the magnitude of the vector 34i + 13j and determine its angle to the x axis.
Problem 2
~ has magnitude 11 and points straigh
PHY204 General Physics Fall 2016
Solutions to Exam 1
Problem 1
(4 pts)
Solution. (a) Positive (because v(t = 0) has a positive value).
(b) Negative (because v(t) has a negative value at point 4).
(c)
Take the positive x direction to point to the right. Between
times t = 0 and t, a car moving along the x axis has average
velocity vavg = 12 m/s. In this period, it has:
1. Moved to the left
2. Moved
Can the sum of magnitudes of two vectors ever be equal to the
magnitude of the sum of the same two vectors?
1. Yes.
2. No.
Can the sum of magnitudes of two vectors ever be equal to the
magnitude of th