Question

1
A body covers first one-third of the distance
with a velocity 20 ms the second one-
third with a velocity of 30 msl and last
one-third with a velocity of 40 ms The
average speed is nearly
-1​

Answer 1

Answer:

27.69 m/sec

Explanation:

A body covers first one-third of the distance with a velocity of 20 ms.

the second one-

third with a velocity of 30 msl.

last

one-third with a velocity of 40

Therefore now we find the average velocity

3/vavg = 1/20 + 1/30 + 1/40

3/vavg = (6+4+3)/120

Vavg = 120*3/13

= 27.69 m/sec