Question

the graph shows a journey of a man, Calculate the speed of man between the following points:O to A A to B B to C C to D .I will mark as the brainliest who will give the right answer i will follow u​

Answer 1

Answer:

Explanation:

We know Speed=Distance/Time

Distance=Speed*Time

Comparing with y=mx

Speed=slope

For OA

O=(9,0) and A=(11,30)

Speed at OA=30/11-9=30/2=15 Km/Hr

A=(11,30) and B=(12,30)

Speed at AB=0

B=(12,30) and C=(12.5,60)

Speed in B to C=60-30/12.5-12

                         =30/0.5

                        =60 Km/Hr

C=(12.5,60) and D=(14,0)

Speed in D=0-60/14-12.5

                 =-60/1.5

                =-40 Km/Hr

Please mark as brainliest and thank if it helps...

Answer 2

Speed = (change in distance)/(change in time)

O to A:

Speed = (30-0)km/(11-9) hr = 15 km/hr

A to B:

Speed = 30-30km/(12-11)hr = 0 km/hr

B to C:

Speed = (60-30)km/(13-12)hr = 30 km/hr

C to D:

Speed = (0-16)km/(14-13)hr = -16 km/hr