Speed is a scaler quantity, and therefore, has magnitude only
The values obtained from the graph are
The reason the above values are correct are given as follows:
The given data in the attached graphs of the motorcyclists obtained from a similar question here are presented as follows;
[tex]\begin{array}{|c|c|c|}Time \ (hours) &Motorcyclist \ A \ (Distance \ (km)&Motorcyclist \ B \ (Distance \ (km)\\0&700&0\\5&300&300\end{array}[/tex]
Therefore, the distance covered by motorcyclist A before they meet is given as follows;
[tex]d_A[/tex] = 700 km - 300 km = 400 km
Similarly, the distance covered by motorcyclist B before they meet is given as follows;
[tex]d_B[/tex] = 300 km - 0 km = 300 km
Second question;
From the graph, the time before the meet, Δt = 5 hours
Third question;
[tex]Average \ speed =\dfrac{Total \ distance}{Total time}[/tex]
Therefore, we have;
[tex]Average \ speed \ of \ motorcyclist, \ A =\dfrac{400 \ km}{5\ hours} = 80 km/hour[/tex]
[tex]Average \ speed \ of \ motorcyclist, \ B =\dfrac{300 \ km}{5\ hours} = 60 km/hour[/tex]
Learn more about average speed here:
https://brainly.com/question/14612116
