Question

A man moves on a straight path. He travels total distance
1. He travels half of his journey with speed 10 ms. The
remaining part of journey was covered by him with speed
20 m s' for half of remaining time and with velocity
40 ms for other half of remaining time. The average
speed is
(a) 15 m s-1
(c) 60 m s-1
(d) 10m s-1 ?
​

Answer 1

Answer:

HELLO MATE

Ans is 16.84 ms-1 which must be option 'b' that you have not shown.

PLEASE RATE IT BRAINLIEST