All Questions
Tagged with rotational-kinematics acceleration
8
questions
21
votes
8
answers
112k
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A simple derivation of the Centripetal Acceleration Formula?
Could someone show me a simple and intuitive derivation of the Centripetal Acceleration Formula $a=v^2/r$, preferably one that does not involve calculus or advanced trigonometry?
- 373
1
vote
3
answers
3k
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Why normal acceleration doesn't bring a change in speed?
Suppose There's a particle of mass m moving with speed $v_{0}$, at certain moment a force starts acting on it (centripetal force) and it start uniform circular motion
Now every other reference states ...
- 373
0
votes
5
answers
16k
views
tangential acceleration for uniform circular motion
I understand that circular motion is defined by 2 components of acceleration, one tangential and one radial and their resultant is what causes circular motion.
I am confused though as to why it is ...
- 137
1
vote
1
answer
112
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What will be the trajectory of the given motion [closed]
If it is given that component of acceleration perpendicular to the velocity of a body has a constant, non-zero magnitude, how can we mathematically prove that the trajectory of the body will be ...
- 212
13
votes
12
answers
6k
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Why is acceleration directed inward when an object rotates in a circle?
Somebody (in a video about physics) said that acceleration goes in if you would rotate a ball on a rope around yourself.
The other man (ex Navy SEAL, on YouTube too) said that obviously it goes out, ...
- 349
2
votes
1
answer
39
views
Finding Average Acceleration with only given angle [closed]
A car enters a curve in the road with a speed of 32 m/s and emerges from this curve 4 s later with the same speed. However, the direction of the velocity changes by 150 degrees during this time.
What ...
- 21
0
votes
1
answer
22k
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What is negative angular acceleration?
I was doing an exercise in physics and I noted that the angular acceleration was negative. What does that mean?
- 1
0
votes
3
answers
821
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Condition for pure translational motion
Q:If we know that the acceleration vectors of all points of the rigid body are equal to each other at all points of time, can we conclude that the body is undergoing pure translational motion?
I ...
- 1