Answer:
time taken by the wave to reach the person is 0.2 s
Explanation:
As we know that the speed of the wave is given as

here we know that the wavelength of the wave is


now speed of the wave is given as


Now time taken by the wave to reach 5 m distance is



If the measurement is in joules then you can push something or pull something as long as you are moving the object. Formula: f*n force times newtons