Question

When an object moves from A to B and
then retern to A if the initial speed
is 'a' and final speed is 'b' then proof
that Average speed = 2ab/a+b
Please help​

Answer 1

Answer:

Divide the total distance traveled by the total time spent traveling. This will give you your average speed. . So if Ben traveled 50 mph for 3 hours, 60 mph for 2 hours, and 70 mph

Answer 2

Explanation:

avg speed. = total distance / total time taken

= [ab - ( - ab )] /(a + b )

= 2 ab / (a + b )