Question

an object travels 20m in 2 s what a then turn around backward to travel 16 m in 2 s find l average velocity

Answer 1

Explanation:

Average speed =. Total distance /total time

=20+16/2+2

= 36/4

= 9 m/sec ANS.

hope it helps you.....!!

Answer 2

Explanation:

Average velocity = (velocityin 1st interval + velocity in 2nd interval) ÷ 2

We know that ,

Velocity = distance/time.

Velocity of object in 1st interval = 20/4 = 5 m/s

Velocity of object in 2nd interval = 20/10 = 2 m/s

Average Velocity = (5+2)/2 = 3.5 m/s