Physics Problem: Momentum Principle to Hover a Human with Throwing Tennis Balls

A human has a mass of 70 kg and they want to fly in the air by throwing tennis balls straight down with a speed of 200 m/s. If the mass of a tennis ball is 60 grams, how many balls per second would need to be thrown? You can assume that the human doesn’t have to carry all these balls. But if they carried 100 balls, how long would they be able to hover?
I'm working through chapter summaries for introductory physics (algebra-based). I'm using the Openstax online (free) textbook College Physics. You can access this book here openstax.org/details/books/co...
Here is the playlist with all the videos and problems for this course.
• Online Physics 1 2024

[@fizixx]

Really interesting problem.

[@DotPhysics]

I've been making too many videos - that's leading to errors.

[@fizixx]

@@DotPhysics We all make mistakes, but the number of videos has been really nice.