per second per second

adverb

Definition of per second per second

: per second every second used of acceleration

Examples of per second per second in a Sentence

Recent Examples on the Web Just as speed tells you how fast your position changes, acceleration describes how your speed changes in meters per second per second (m/s2). Popular Mechanics Editors, Popular Mechanics, "How to Jump from a Moving Train Using Science," 15 Sep. 2019 In the vertical direction, the ball starts with zero vertical velocity and then accelerates downward at 9.8 meters per second per second (due to the gravitational force). Adam Rogers, WIRED, "The Awesome Bowling Robot Is Surely Fake. Here's How to Tell," 10 July 2019 And, though the acceleration produced is small (1mm per second per second), there is little in the vacuum of space to slow the craft down. The Economist, "Space travelA new way of propelling spacecraft may open up the asteroid belt," 21 Sep. 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'per second per second.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

See More

First Known Use of per second per second

1916, in the meaning defined above

Keep scrolling for more

Learn More about per second per second

Time Traveler for per second per second

Time Traveler

The first known use of per second per second was in 1916

See more words from the same year

Statistics for per second per second

Cite this Entry

“Per second per second.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/per%20second%20per%20second. Accessed 8 Aug. 2020.

Comments on per second per second

What made you want to look up per second per second? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

Test Your Vocabulary

Original Meanings Quiz

  • rembrandt painting a young scholar and his tutor
  • Which of the following is the earliest known sense of the word awe?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Bee Cubed

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!