The lower the frequency the lower the pitch sound.
1. No they aren’t because they all belong to different sports and are used differently
4/3 m/s ( approximately 1.3333... m/s)
Answer:
Final velocity v = 8.944 m/sec
Explanation:
We have given distance S = 40 meters
Time t = 10 sec
As it starts from rest so initial velocity u = 0
From second equation of motion 


Now from first equation of motion
, here v is final velocity, u is initial velocity, a is acceleration and t is time
So 