Answer:
A = 15Km/hour B = 0Km/Hour C = 60Km/Hour D = 40/Hour
Step-by-step explanation:
To find speed, the equation is distance / time. So, for a, the distance travelled in 2 hours was 30 Km. To make it a unit number, I divided the 30 / 2 and got 15Km/Hour.
For B, there was no distance travelled. So the velocity would be 0.
For C, the distance travelled in half an hour was 30 Km. So the speed would be 60 Km/ Hour.
For D, the distance travelled in 1.5 hours was 60Km. The distance travelled in 1 hour was 40 Km. So the speed would be 40Km/Hour.
