Question

A car i moving along a straigh Aakar is moving along a straight track with a velocity 20 m per second due east after 5 seconds it starts retracing its path with uniform velocity V if its average velocity after 15 seconds is zero then V is

Answer 1

Answer:

40 is the answer ok

Explanation:

please make this brainliest

Answer 2

Answer:

V = 10 m/s

Explanation:

After 15 seconds, the average velocity is zero

Therefore, the displacement of the car is zero

i.e. the car is back in its position, from where it started

The distance traveled in the 5 seconds with velocity 20 m/s = The distance traveled in 10 seconds with velocity v

or, $5\times 20=10\times v$

$\implies v=10$ m/s

Hope this answer is helpful.