College Physics Problem 1.2.2


A car is traveling at a speed of 33 m/s .
(a) What is its speed in kilometers per hour?
(b) Is it exceeding the 90 km/h speed limit?


Solution:

Part a

\displaystyle 33\:m/s=\left(33\:\frac{m}{s}\right)\left(\frac{1\:km}{1000\:m}\right)\left(\frac{3600\:s}{1\:hr}\right)=118.8\:km/hr

Part b

At 118.8 km/h, the car is traveling faster than the speed limit.


Geometry Basics

Geometry (from the Ancient Greek: γεωμετρία; geo- “earth”, -metron “measurement”) is a branch of mathematics concerned with questions of shape, size, relative position of figures, and the properties of space (wikipedia.com).

Below are example questions in geometry basics. Take time to answer each of them. Afterward, you can download the answer at the bottom of the page.

Happy learning!

P1) The complement of an angle measures 56°. What is the measure of the angle?
a) 124º
b) 34º
c) 68º
d) 112º

Continue reading “Geometry Basics”