Question

A man walks with uniform speed 10 meter per second 20 meter per second 30 meter per second , 30 meter per second for 20 second find average velocity

Answer 1

Hey mate!

For each speed a man travels for 20 seconds.

So , total distance

=> (10 × 20) + (20 × 20) + (30 × 20)

=> 200 + 400 + 600

=> 1200 m

Total time = 20 + 20 + 20 = 60s

Therefore, average velocity= total distance/total time taken

=> 1200/60

=> 20 m/s

Thanks for the question!

Answer 2

HEY MATE,,,


HERE IS YOUR ANSWER,,,


For each speed man walks for = 20 seconds.

So,

Total distance,

= ( 10 × 20 ) + ( 20 × 20 ) + ( 30 × 20 )

= 200 + 400 + 600

= 1200 m.

Total time = 20 + 20 + 20 = 60 seconds.

Therefore, average velocity = total distance / total time taken

= 1200 / 60

= 20 m / s.


HOPE THIS HELPS YOU.