Remember that work is force · distance, not force · time. When reasoning using energy conservation, ignore the time and just think about the distance something happens over.
Force · time is momentum, so when reasoning using momentum, then think about time again.
Remember that work is force · distance, not force · time. When reasoning using energy conservation, ignore the time and just think about the distance something happens over.
Force · time is momentum, so when reasoning using momentum, then think about time again.