Work out the speed of a car travelling:
- 100m in 10sec
- 300m in 20sec
- 700m in 35sec
- 1000m in 200sec

please show the working out therefore I can understand it

The speed is also known as the velocity, which would be the number of meters for every second that the car travels (m/s). To find the speed, we will need to divide the number of meters the car travels by the number of seconds it takes for the car to travel that distance.

100m / 10 sec = 10m/sec

300m / 20 sec = 15m/sec

700m / 35 sec = 20m/sec

1000m / 200 sec = 5m/sec

Hope this helps! :)

sodium i think the chemical element of atomic number 11, a soft silver-white reactive metal of the alkali metal group.