Question

body moves from a to b is 60 m/s then back to a in 40 m/s . find the average speed​

Answer 1

Answer:

50m/s

Explanation:

average speed = total distance/total time

average speed = 40+60/2

=50m/s

Answer 2

50 m/s

Explanation:

Q.

Body moves from A to B is 60 m/s, then back to A in 40 m/s. Find the average speed.

Solution -

Initial speed (u) = 60 m/s

final speed (v) = 40 m/s

Because the body moved same distance both time, so

average speed = (v + u)/2

= (60 m/s + 40 m/s)/2

=> (100 m/s)/2

=> 50 m/s

Hence average speed = 50 m/s

hope it helps.