Answer:
what graph
Step-by-step explanation:
Picture
I graphed them
relative speed is calculated by the difference of the one with respect to the other
let car be 70 mph
and lorry be 50 mph../
relative speed of car with respect to lorry = 70-50 = 20 mph
this is ur answer
5
a minus times by another minus makes a positive, so it is basically 1 x 5
