Question

6. The graph below shows how Paul's position

changed as he walked to school.
Distance Travelled over Time
Position (m)
1200
1000
800
600
400
200
0
0
100
200
300
Time (s)
400
500
Calculate Paul's average speed over his entire
trip.

Answer 1

Average spee for Paul's wal to school is 2.4 m/s.

Explanation:

See attached worksheet. The average may be calculated using only the beginning and ending points. The average speed, 2.4 meters/second, is the slope of the line that connects the beginning and ending points.