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2 votes
1 answer
69 views

(Circular motion) Acceleration is given, so why asked for more? [closed]

The full question is below. A car starts from rest and moves around a circular track of radius $32.0\,\text m$. Its speed increases at the constant rate of $0.500\,\text{m/s}^2$. (a) What is the ...
Stanley's user avatar
  • 21
0 votes
2 answers
706 views

What is the real difference between radial and tangential acceleration?

So in my physics coursebook there are two different kinds of derivation of $\frac{dv}{dt}$ of a particle rotating in a circle. Most of you will know these, they are what is called centripetal/radial ...
Kjell De Mars's user avatar
13 votes
12 answers
6k views

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, ...
R S's user avatar
  • 349
1 vote
3 answers
3k views

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 ...
Xasel's user avatar
  • 373
1 vote
3 answers
4k views

Proof of Centripetal Acceleration Angle $\theta$ is the same?

The book I am reading shows a proof of centripetal acceleration. It proceeds to say that the linear velocity is always at a tangent to the radius, so the angle between $V_A$ and $V_B$ is also $\theta$...
vik1245's user avatar
  • 233