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kbaker
 3 years ago
Is there such a thing as negative acceleration?
kbaker
 3 years ago
Is there such a thing as negative acceleration?

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cpm1210
 3 years ago
Best ResponseYou've already chosen the best response.0Acceleration ia defined as a change in velocity over the change of time. According to that you can't have a negative velocity. The lowest you could be going is 0

exploringphysics
 3 years ago
Best ResponseYou've already chosen the best response.0YES , IF VELOCITY DECREASES .dw:1355882836836:dw THE SLOPE GIVES ACC. IE. VE

ghazi
 3 years ago
Best ResponseYou've already chosen the best response.1well for example ,when you apply brakes suddenly on a vehicle that is called as retardation or negative of acceleration, in this case final velocity is less than the initial one so difference of final and initial is negative

TarunRaina
 3 years ago
Best ResponseYou've already chosen the best response.0negative acceleration or retardation means the rate of decrease of velocity with time

Krishnadas
 3 years ago
Best ResponseYou've already chosen the best response.0Yes...It is Deceleration...velocity decreases

Kainui
 3 years ago
Best ResponseYou've already chosen the best response.1Most people here don't understand acceleration, or at least haven't made the distinction between speed and velocity. You can have a negative acceleration and be speeding up. All the negative sign tells you is direction. For instance if you drop something off a building and you set it so that 0 was the ground and the top of the building was +10, then when you dropped it it would be accelerating downwards AND INCREASING speed. The velocity is the direction and speed, and it's an important distinction to make when understanding acceleration.

chongkhengwye
 3 years ago
Best ResponseYou've already chosen the best response.0The term 'negative acceleration' is ambiguous. it can mean deceleration i.e. speed is decreasing OR It can mean that an object is accelerating in the negative direction. e.g. consider a stone thrown vertically upwards in the absence of air resistance. If one takes upwards as positive, the stone always has negative acceleration. BUT on its way upwards, it is decelerating, while on its way downwards, it is increasing its speed!
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