All Questions
Tagged with torque acceleration
44
questions
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Calculating vehicle and tire acceleration with tire slipping
I'm attempting to simulate the motion of a vehicle with $N$ tires and I'm running into some trouble deriving forces/acceleration when adding friction and tire slipping into the picture. Here's an ...
- 103
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2
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73
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Forces accelerating a tire
I'm attempting to write a little vehicle simulator and I'm working on calculating vehicle linear acceleration and tire angular acceleration. I'm trying to add in tire slipping and I'm having trouble ...
- 103
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3
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141
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Is there a maximum angular acceleration due to gravity for a given radius?
I'm having trouble understanding the relationship between angular acceleration and tangential acceleration, specifically, how can an angular acceleration created by the tangential acceleration of ...
- 11
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1
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50
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Angular acceleration of a pulley [closed]
This is the way I solved but the answer seems to be different.
Torque = $Iα$
Torque = $Mgr-\dfrac{Mgr}{2} = \dfrac{Mgr}{2}$
$\dfrac{3}{4}Mr^2 = \dfrac{Mgr}{2}$
Cancelling things give, $α = \dfrac{2g}{...
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1
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77
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Torque about an accelerating point
The total force acting on the pulley is zero so:
$$F = mg + T_1 + T_2 \tag{A1}$$
Analyzing the torque and angular acceleration about the actual axis of rotation, the axle
of the pulley, gives:
$$τ_{...
- 1
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vote
3
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603
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Why is Newton's second law seemingly not applicable to a ball rolling down incline plane?
A homework problem asked us to find the acceleration of a ball (pure) rolling down an incline plane without friction. I thought it was simply $a=g \ \sin(\alpha)$ where $a$ is the acceleration of the ...
- 151
3
votes
2
answers
316
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Falling yoyo experiment
I was playing with a yoyo and a spring dynamometer and realized the tension during the fall is not constant but clearly has a small oscillatory component. This experimental result contradicts the ...
- 1,940
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Can anyone guide me on torque equation to rotate a part?
hope you all are doing good.
I am a bit confused on which equation to use to calculate the torque required to rotate a part.
I want to use a hydraulic motor at the 6th axis (end of robot arm) of ...
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2
answers
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Can power to weight ratio be used to calculate theoretical 0-60 times?
The power to weight ratio is used to calculate how fast a car can accelerate. If a car has 400 hp and a weight of 2000 lbs (400/2000), it should make 0.2 hp per pound. If I switch the fraction around (...
3
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4
answers
206
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How does torque even work on intuitive level? [closed]
I just watched some videos on torque, and that created confusion in me.
What exactly is torque?!
Some people say it is the rotational equivalent of a force, but the units do not match out. Some say ...
- 472
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2
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46
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Which is the part that's work applied at and rotates with a distance? [closed]
For the figure below I have a question that is: I see that the pink rod is the shaft and a gray circular body. What I can't get is that which one is the work being applied at and for which one does ($...
- 113
2
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1
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161
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Length of rod given forces and lengths to calculate torque [closed]
In the question and solution given below, I haven't understood why is the solution asking us to take torques about the center of mass.
In my approach I equated the net torque about the lower end B of ...
- 186
-1
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1
answer
231
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Accelerometer Vs gyroscope - measuring torque [closed]
Torque can be measured with an accelerometer (tangential-acceleration):
t = Fr and F=ma, so we get a from the accelerometer, giving:
t = mar
Torque can also be measured with a gyroscope (angular-...
- 101
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vote
3
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186
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Definition of torque in the (possibly accelerating) centre of mass frame
My lecture note states that the torque in the centre of mass frame ($O^*$) of a rigid body is: $$\bf{G^*}=\sum \bf{r^* \times F}$$
where $\bf{F}$ denotes the real force that is producing the torque
...
- 1,047
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2
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In rotational motion, why $a = rα$?
The formula of torque is given by $$τ= F*r = Iα,$$ while solving some questions I came across a question of rotating pulley where these two formulas were equated to find value of $α$. How $a=rα$? a ...
