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anonymous
 one year ago
Is acceleration a dimensionless number?
anonymous
 one year ago
Is acceleration a dimensionless number?

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amistre64
 one year ago
Best ResponseYou've already chosen the best response.0what is the definition of acceleration?

amistre64
 one year ago
Best ResponseYou've already chosen the best response.0or, if you know how the acceleration due to gravity is defined ... is it dimensionless?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0if the acceleration is equal to the gravity sin theta, then is it dimensionless?\[a=g \sin \Theta\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0and we know the angle is like 40 degrees...

amistre64
 one year ago
Best ResponseYou've already chosen the best response.0sin(theta) is dimensionless, gravity is not

amistre64
 one year ago
Best ResponseYou've already chosen the best response.0a/g = sin(theta) ... the dimensions cancel out to 1 and we are left with sin(theta) as a dimensionless value whose only purpose is to offer some sense of scale to the problem.

amistre64
 one year ago
Best ResponseYou've already chosen the best response.0at least thats my view of it

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Another approach. Acceleration is the rate of change of velocity, i.e.\[a=\frac{ \Delta v }{ \Delta t }\]If you know the dimensions (units) of velocity and time, you can work out the dimension of acceleration.
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