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12 questions with no upvoted or accepted answers
3 votes
2 answers
156 views

Acceleration in terms of displacement

I am having problems understanding the derivation of acceleration in terms of displacement. The first step is fine: $$a(x) = \frac{\mathrm dv(x)}{\mathrm dt} = \frac{\mathrm dv(x)}{\mathrm dx} \frac{\...
Hugo Lundin's user avatar
2 votes
1 answer
202 views

How to use a piecewise acceleration function to get a position function?

This should be a relatively easy problem but I think I am missing something somewhere. This problem consists of a object that is being thrown into the air at $t = 4s$ at a velocity $v_0$ here is my ...
EzTheBoss 2's user avatar
2 votes
1 answer
537 views

How to determine the minimum "Arrival Distance" given a maximum velocity, acceleration and jerk along with an initial velocity and acceleration?

Problem Given the following: $A$ - maximum acceleration. $J$ - constant jerk (the rate of change of acceleration). $v$ - initial velocity. $a$ - initial acceleration (where, in practice, $a ∈ [-A, A]$...
mindTree's user avatar
  • 121
1 vote
3 answers
90 views

How to deal with functions of kinematic quantities not defined in terms of time?

How do I deal with functions of kinematic quantities which are not defined with respect to time? For instance, given acceleration as a function of velocity or displacement, how would I go about ...
Kishor Kunal's user avatar
0 votes
0 answers
43 views

Physical and Diagrammatic representation of $a$=undefined when $v$=0 according to $a$=$vdv$/$dx$

$a$=acceleration $v$=velocity $x$=position along x axis $t$=time instant My teacher derived the $a$=$v$$dv$/$dx$ formula as follows Assume a particle at time $t$ is at $x$ position having $v$ velocity ...
Rita Garain's user avatar
0 votes
2 answers
329 views

Why tangential acceleration become 0 when the velocity is max?

I Know that tangential acceleration equal to zero when the circular motion is uniform, but why it is equal to 0 , when the velocity is max or min , because there is no relation between the value of ...
Alia's user avatar
  • 11
0 votes
1 answer
41 views

Are terms tangential acceleration and normal acceleration only used for instantaneous velocity?

Are terms tangential acceleration and normal acceleration only used for instantaneous velocity?
Naman Singh's user avatar
0 votes
1 answer
248 views

How to calculate traveled distance with non-constant acceleration in time?

I know this formula $D = vt + \frac{1}{2}at^2$ for calculating the distance given initial velocity, time and acceleration. But what if my acceleration is not static, but increasing exponentially ...
John T's user avatar
  • 853
0 votes
0 answers
225 views

How to determine the distance travelled before a maximum acceleration is reached given a constant jerk?

Problem Given: An initial velocity and acceleration of 0. A maximum acceleration $A$ A constant jerk $J$ How might one determine the distance $D$ traversed before the maximum acceleration $A$ is ...
mindTree's user avatar
  • 121
0 votes
0 answers
94 views

Acceleration as the second derivative of displacement function

Let $x$ be displacement as a function of time $t$ and some other physical quantity $k$ such that $ x = f(t,k) $ Now, 1) Will the acceleration $a$ be $\frac{\partial^2 x}{\partial t^2}$ or $\frac{d^...
StaticESC's user avatar
0 votes
1 answer
95 views

Acceleration Question

I'm really confused how we have a distance formula from acceleration. I understand acceleration is the change of velocity/time, however I don't understand how you can calculate a distance based on a ...
Mike 's user avatar
  • 71
-1 votes
1 answer
272 views

Integration of Acceleration to Get Delta Velocity

How do you get delta velocity if you have times t1 and t2 and their velocities v1 and v2, but you only know their accelerations a1 and a2. If you integrate over accelerations a1 and a2, do you get a "...
tomihasa's user avatar