Question

18
23 The diagram is the speed-time graph representing part of a train's journey.
40
NOT TO
SCALE
Speed
(m/s)
24+
1
0-
0
60
20
Time (seconds)
The train slows down uniformly from a speed of 40 m/s to a speed of 24 m/s in a time of 20 seconds.
It then slows down uniformly for a further 40 seconds, until it stops.
(a) Find the deceleration between t = 20 and t = 60.​

Answer 1

Step-by-step explanation:

18

23

the diagram is the speed-time graph representing part of a train's journey.

40

NOT TO

SCALE

speed (m/s)

24+

1

0-

60

20

time (seconds)

the train slows down uniformly from a speed of 40m/s to a speed of 24m/s in a time of 20 seconds.

it then slows down uniformly for a further 40 seconds,until it stops. (a) Find the declaration between t = 20 and t = 60.