Question

boy cover 10 metre in the first 5 second and 20 m in the next 5 second find its average speed​

Answer 1

Answer:

3m/s

Explanation:

total distance

total time

10+20

5+5

30

10

3

Answer 2

Answer: 3 m/s

Explanation:

Speed in case one:

10/5= 2 m/s

Speed in case two:

20/5= 4 m/s

Average speed= 2+4/2

=3 m/s

OR

Total time= 5 + 5 =10 s

Total distance = 10 + 20 = 30

Average speed = Total distance/Total time

                       = 30/10

                        = 3 m/s