Question

a ball hit a wall horizantily at 6.0 ms it rebound horizontally at 4.4 ms. calculate the average speed of whole journey​ send answer fast I have lake of time​

Answer 1

Answer:

Can you give the answer as you are asking this for the 2nd time .I think the following step

Explanation:

average speed = 2 v1 v2 / v1 +v2

                         =  2*6*4.4/ 10.4

                          = 5.076 m/s

Answer 2

Answer:initial velocity = 6 m/s ( forward)

final velocity = 4.4 m/s ( backward) = -4.4 m/s ( forward )

acceleration = change in velocity/time

= ( -4.4 -6)/ 0.04 = -10.4/0.04

= -1040/4 = -260 m/s² ( forward )