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Mechanics › Newton's laws

0/0 this session +0 XP
Numeric Moderate f-ma ~60s

A net force of 12 N acts on a 4 kg mass. What is the acceleration in m/s²?

Fractions, decimals and π are all understood.

Hints are free to take and they are counted. A correct answer after two hints moves your mastery less than one without — which is the honest way to score it.

Why this question? this skill is new to you; it stretches you slightly; and it needs calibrating — few people have tried it Predicted chance you get it: 48% — the selector aims at 78%.
difficulty fit 0.036
skill need 0.75
review boost 0
calibration bonus 0.12
recency penalty 0
repetition penalty 0
frustration 0