pull power, push power of wave

pull power, push power of wave

 

point

    1⃣ wave push surfer, if surfer moves slower than wave

    2⃣ wave pull surfer, if surfer moves faster than wave

    3⃣ wave have pull power & push power, to surfer

 

wave example

    1⃣ sound wave

    2⃣ magnet wave

    3⃣ gravity wave