How do you find the distance travelled given constant speed and time?

1. Constant speed means that you don't get faster, and you don't get slower
2. Think d=s•t when you see constant speed
1. d- distance
2. s- speed
3. t- time
4. Think of this with constant speed problems
1. t- time
2. min- minutes
3. sec- seconds
4. We need the total time in seconds, since that is the unit given in the speed
1. t- time
2. sec- seconds
3. We need the total time in seconds, since that is the unit given in the speed
1. d- distance
2. m- meters
3. sec- seconds
4. Plug numbers into the equation!
1. d- distance
1. Convert meters to miles
2. m- meters
3. cm- centimeters
4. in- inches
5. ft- feet
6. mi- miles
1. d- distance
2. Here we've converted meters to miles
1. m- meters
2. sec- seconds
3. Constant speed on a speed vs. time graph mean a flat line
4. Height of a constant speed line on the graph is speed
5. Length of the constant speed line is the time
6. Area of the rectangle gives total distance
1. The area under a speed vs. time graph tells you the distance traveled
1. For a rectangle, just take the base and multiply by the height, and you get the area
1. m- meters
2. sec- seconds
3. Plug the numbers in to find the area of the rectangle, and therefore the distance
1. d- distance
2. Using graphs alone we found the same answer as what we got with algebra

A radio message is sent to the Mars Rover. The message moves at a constant speed of 3x108 m/s, and travels for 1 minute and 45 seconds. How far did the message travel a) in meters? b) in miles?