Homework 1 for quiz 1 on 1/15/03

Young and Freedman excercises 1-2, 1-4, 1-36, 1-40, 1-42, 1-46, 2-8, 2-10, 2-20, 2-30, 2-54

Solve the following problems from the U Oregon website and compare with the solutions that are also given there:

The fastest man in the world,

Average velocity and distance,

Comparing average velocity over time and distance,

Melon Bombing,

Finding Velocity and Acceleration from a Displacement Plot,

Constant Acceleration in a Car,

Jumping in a Falling Elevator,

A Car's "0 to 60" time,

A ball by a window,

Matching Units.

Finally:

Speed has dimensions [L]/[T] (length over time). Acceleration has dimensions [L]/[T]². Shortly we'll calculate the acceleration when a body is rotated in a circle of radius R at a constant speed of V. But you can use dimensional analysis (see dimesional analysis section of web book), to calculate the acceleration in terms of V and R up to a multiplicative prefactor.