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deceleration    音标拼音: [dɪs,ɛlɚ'eʃən]
n. 减速

减速

deceleration
减速

deceleration
减速

deceleration
n 1: a decrease in rate of change; "the deceleration of the arms
race" [synonym: {deceleration}, {slowing}, {retardation}] [ant:
{acceleration}]
2: (physics) a rate of decrease in velocity [ant:
{acceleration}]
3: the act of decelerating; decreasing the speed; "he initiated
deceleration by braking" [ant: {acceleration}, {quickening},
{speedup}]

deceleration \deceleration\ n.
a decrease in velocity. Opposite of {acceleration}

Syn: slowing, retardation.
[WordNet 1.5]

71 Moby Thesaurus words for "deceleration":
arrest, arrestation, catabasis, check, collapse, constraint,
control, cooling, cooling down, cooling off, crash, curb,
curtailment, declension, decline, decline and fall, decrescendo,
delay, detention, diminuendo, dive, downtrend, downturn, drag,
drop, dwindling, ease-off, ease-up, ebb, fall, flagging, hindrance,
holdup, inhibition, injunction, interdict, lag, lapse,
legal restraint, letdown, letup, minus acceleration, monopoly,
obstruction, plunge, prohibition, protection, protectionism,
protective tariff, rationing, rein, remission, restraint,
restraint of trade, retardation, retardment, retreat, retrenchment,
self-control, setback, slack-up, slackening, slowdown, slowing,
slowing down, slowup, slump, subsidence, tariff wall,
thought control, wane


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  • Is Deceleration Really a Forbidden Word in Physics? - Physics Forums
    Since if deceleration is a vector quantity, it would be very confusing since deceleration sort of implies the "negative" of acceleration In that case, deceleration can simply be replaced by an acceleration vector in the opposite direction
  • Calculation of force from deceleration? - Physics Forums
    Thank you in advance I am sorry if the example is strange but what I am trying to caculate in effect is the force in Newtons the man is excerting to stop it, and I am questioning how force is calculated differently if at all, if deceleration is present rather than base acceleration
  • How to calculate vehicle deceleration (time to stop) - Physics Forums
    To calculate the distance a person riding a bike will roll if they stop pedaling and apply no force, we can use the equation for deceleration: a = (vf - vi) t, where a is the deceleration, vf is the final velocity (in this case, 0 m s), vi is the initial velocity (the speed at which the person is riding the bike), and t is the time it takes for the person to come to a complete stop
  • Calculating Deceleration Forces: Is It Easier to Use gs or Mass?
    Force = mass x deceleration deceleration as defined above = 11 8 ft s² Mass has to be converted to slugs A slug is weight g (acceleration due to gravity) So 150lbs 32 ft s²= 4 6875 slugs This is the mass in slugs based of deceleration due to gravity So Mass= 4 6875 Deceleration = 11 8ft s²
  • G force and rate of deceleration - Physics Forums
    And if I were to plot the negative g's how would the deceleration rate plot compare Sorry to bother you'se with such a trivial question, but I've been researching this and can't seem to get a definitive answer I am preparing a patent using the above and don't want to make a claim that can't be proven Many Thanks
  • Calculating Constant Rate of Deceleration - Physics Forums
    An earlier post by Andrew mentions d=t(v_orig + v_final) 2, which at first seemed wrong to me until I realized that the rate of deceleration is implicit in the computation of t I'm now thinking this to be the correct formula I shudder to think how much less simple it would be were the deceleration rate not constant I'll consider myself lucky :)
  • Drag force = Mass * deacceleration? - Physics Forums
    Probably because you almost never know the deceleration of a given object That deceleration will also change depending on how long an object has been falling since the drag is dependent on the velocity of the object It also isn't simple when you are talking about something with more forces acting on it like an aircraft or a car
  • Deceleration of an object due to friction - Physics Forums
    You appear to then divide that by the mass again to obtain 3 928ms-2, which you termed a 'deceleration' I suppose you could consider it a deceleration in this sense: if there were no friction and you applied a horizontal force F then the acceleration would be a = F m; the friction reduces that by 3 928ms-2
  • Maximum Deceleration of a Bicycle - Physics Forums
    Finally got a chance to meet up with my lecturer today, who said that Max deceleration occurs when the front brake only is applied and the back wheel just comes off the ground, i e The equation that I have at the start Didn't realize that it tipped about the bottom of the front wheel which made everything make more sense Thanks for the help





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