CCEA M1 Mechanics 25th May 2016

"The cyclist maintains a constant velocity as he travels from B to D.
Find the displacement of D from O. [4]
Find the cyclist's average speed for the whole journey. [3]"

Didn't ask anything about distance or total distance.

True, but surely to work out the average speed for the whole journey you would have to work out the total distance first then divide by the total time?

Thats what I was thinking!

Okay so not exactly an unofficial marks scheme but this is what I got from memory. Really not sure about q6 though.

Q1 (i) 70.2ms^-1
(ii) 6.65s
(iii) 5.8ms^-2
Q2 (i) 5ms^-1
(ii) -280m
(iii) 4.74ms^-1
Q3 angle=22.2
T=24.9N
Q4 (i) 2s, 10s
(ii) 62.4m
Q5 (i) v=k+2
(ii) I=-km
(iii) k=2
Q6 (i) 0.387
(ii) 7.62N
Q7 1.37m

True, but surely to work out the average speed for the whole journey you would have to work out the total distance first then divide by the total time?

I didn't do that but still got 4.74m/s?