Posts by laken
Total # Posts: 9
The figure gives the acceleration a versus time t for a particle moving along an x axis. The a-axis scale is set by as = 14.0 m/s2. At t = -2.0 s, the particle's velocity is 11.0 m/s. What is its velocity at t = 6.0 s?
January 24, 2014
While in Europe, if you drive 117km per day, how much money would you spend on gas in one week if gas costs 1.10 euros per liter and your car's gas mileage is 32.0mi/gal ? Assume that 1euro=1.26dollars.
September 13, 2013
There are two questions of my homework I'm having trouble with.. I think we are supposed to show how they are true. In other words, make one side look exactly like the other one by using the identities. 1. cosX/(1-sinX)=(1+sinX)/cosX 2. (secX+tanX)/(secX-tanX)=(1+2sinX+sin...
December 17, 2009
Linear and angular speed Find w for each of the following: 1. the minute hand of a clock 2. the second hand of a clock The answer to #1 should be pi/30, but I do not understand how to solve these.
November 2, 2009