Time independent acceleration equation?

In summary, the speaker is questioning whether a specific differential equation is valid for time independent acceleration. The responder explains that the equation is not valid because the units do not match up. The speaker realizes their mistake and thanks the responder for pointing it out.
  • #1
re444
15
0
Hi,

Is this differential equation valid for time independent acceleration"

a = dV/dt = dV/ (V dx) = ( dV / dx ) * (1/V) ?
 
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  • #2
re444 said:
d = dV/dt = dV/ (V dx) = ( dV / dx ) * (1/V) ?
It's not quite clear what you're doing here. dV/dt has units of acceleration, while dV/(V dx) has units of 1/length. So your equation isn't valid.

Perhaps you're thinking of dV/dx = (1/V)dV/dt ?
 
  • #3
Doc Al said:
It's not quite clear what you're doing here. dV/dt has units of acceleration, while dV/(V dx) has units of 1/length. So your equation isn't valid.

Perhaps you're thinking of dV/dx = (1/V)dV/dt ?

Oh ! my obvious fault: a = dV / dt = dV/ (dx / V) = V dV/dx .

thanks
 

FAQ: Time independent acceleration equation?

What is the time independent acceleration equation?

The time independent acceleration equation is a formula that describes the relationship between an object's acceleration, mass, and the net force acting on it. It is written as a = F/m, where a is acceleration, F is net force, and m is mass. This equation is valid for any situation where an object's acceleration remains constant.

How is the time independent acceleration equation different from the time dependent acceleration equation?

The time independent acceleration equation is used when an object's acceleration remains constant, while the time dependent acceleration equation is used when an object's acceleration changes over time. The time dependent equation is written as a = dv/dt, where a is acceleration, v is velocity, and t is time.

What are some real-life applications of the time independent acceleration equation?

The time independent acceleration equation is used in many areas of physics and engineering, such as in calculating the acceleration of objects in free fall, the motion of projectiles, and the behavior of simple machines like pulleys and levers. It is also used in designing and testing vehicles, such as cars and airplanes.

How does the time independent acceleration equation relate to Newton's Second Law of Motion?

The time independent acceleration equation is a direct result of Newton's Second Law of Motion, which states that the net force acting on an object is equal to its mass multiplied by its acceleration. The time independent acceleration equation provides a way to calculate an object's acceleration when the net force and mass are known.

Can the time independent acceleration equation be used in non-uniform gravitational fields?

Yes, the time independent acceleration equation can be used in non-uniform gravitational fields, as long as the acceleration remains constant. However, in situations where the acceleration is not constant, such as near the surface of a planet, the time dependent acceleration equation must be used instead.

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