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Speed Review II
speed, velocity, acceleration
Question | Answer |
---|---|
slope of a position vs. time graph | speed |
area under an acceleration vs. time graph | change in velocity |
area under a velocity vs. time graph | displacement |
distance divided by time | speed |
displacement divided by time | velocity |
change in velocity divided by time | acceleration |
quantity including magnitude (amount) only | scalar |
quantity including both magnitude (amount) and direction | vector |
IRL, this force always opposes motion | friction |
starting point for motion | frame of reference |
acceleration due to gravity | -9.81 m/s2 |
velocity if object ends up back where it started | 0 m/s |
slope of a velocity vs. time graph | acceleration |
what's happening to velocity of a falling object | decreasing |
what's happening to the acceleration of a falling object | stays same/constant |