How to output the speed of a floating body

Can anyone in the community tell me how to output parameters such as the speed of the float when using chrono? Thanks to everyone who answered me.

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Debug Trace

Notice
rich is deprecated. Use FormatService::renderHtml($content, Formats\RichFormat::FORMAT_KEY) instead.

#0 [internal function]: gdn_ErrorHandler(16384, 'rich is depreca...', '/var/www/forums...', 950, Array)
#1 /var/www/forums-dual-sphysics-org/library/core/functions.general.php(950): trigger_error('rich is depreca...', 16384)
#2 /var/www/forums-dual-sphysics-org/library/core/class.format.php(1729): deprecated('rich', 'FormatService::...')
#3 /var/www/forums-dual-sphysics-org/library/core/class.format.php(1479): Gdn_Format::rich('[{"insert":"Can...')
#4 /var/www/forums-dual-sphysics-org/applications/vanilla/controllers/class.discussioncontroller.php(197): Gdn_Format::to('[{"insert":"Can...', 'Rich')
#5 /var/www/forums-dual-sphysics-org/library/core/class.dispatcher.php(862): DiscussionController->index('2668', 'how-to-output-t...', '')
#6 /var/www/forums-dual-sphysics-org/library/core/class.dispatcher.php(279): Gdn_Dispatcher->dispatchController(Object(Gdn_Request), Array)
#7 /var/www/forums-dual-sphysics-org/index.php(29): Gdn_Dispatcher->dispatch()
#8 {main}
Notice
rich is deprecated. Use FormatService::renderHtml($content, Formats\RichFormat::FORMAT_KEY) instead.

#0 [internal function]: gdn_ErrorHandler(16384, 'rich is depreca...', '/var/www/forums...', 950, Array)
#1 /var/www/forums-dual-sphysics-org/library/core/functions.general.php(950): trigger_error('rich is depreca...', 16384)
#2 /var/www/forums-dual-sphysics-org/library/core/class.format.php(1729): deprecated('rich', 'FormatService::...')
#3 /var/www/forums-dual-sphysics-org/library/core/class.format.php(1479): Gdn_Format::rich('[{"insert":"Can...')
#4 /var/www/forums-dual-sphysics-org/applications/vanilla/views/discussion/helper_functions.php(24): Gdn_Format::to('[{"insert":"Can...', 'Rich')
#5 /var/www/forums-dual-sphysics-org/applications/vanilla/views/discussion/discussion.php(89): formatBody(Object(stdClass))
#6 /var/www/forums-dual-sphysics-org/applications/vanilla/views/discussion/index.php(31): include('/var/www/forums...')
#7 /var/www/forums-dual-sphysics-org/library/core/class.controller.php(778): include('/var/www/forums...')
#8 /var/www/forums-dual-sphysics-org/library/core/class.controller.php(1382): Gdn_Controller->fetchView('', false, false)
#9 /var/www/forums-dual-sphysics-org/library/core/class.pluggable.php(217): Gdn_Controller->xRender()
#10 /var/www/forums-dual-sphysics-org/applications/vanilla/controllers/class.discussioncontroller.php(310): Gdn_Pluggable->__call('render', Array)
#11 /var/www/forums-dual-sphysics-org/library/core/class.dispatcher.php(862): DiscussionController->index('2668', 'how-to-output-t...', '')
#12 /var/www/forums-dual-sphysics-org/library/core/class.dispatcher.php(279): Gdn_Dispatcher->dispatchController(Object(Gdn_Request), Array)
#13 /var/www/forums-dual-sphysics-org/index.php(29): Gdn_Dispatcher->dispatch()
#14 {main}