All Questions
Tagged with rotational-kinematics acceleration
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Torque, Angular Acceleration and Linear Acceleration
We know that we torque is applied, it cause an angular acceleration in the rotating body similar to what a force does to a body moving on a straight line.
But my question is, Does Torque affect the ...
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Can acceleration at a point be non-zero if angular velocity is zero?
I have just started studying rotational kinematics.
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Why is acceleration in the rotating system zero?
Given a circular body that rotates around itself and there is a band(or iron line) that connects between the Cartesian coordinate system and its Perimeter, on the band, there is an ant that walking ...
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Can we measure little $g$ in this way?
If a cup of water (known mass) is whirled round at the end of a string, and we look for the exact angular velocity which makes water remain in the cup, is it possible, by knowing the force equilibrium,...
user153036
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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 ...
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Kinematics for Non-Uniform Circular Motion
I'm trying to understand how kinematics for non-uniform circular motion. I know that you can represent the net acceleration of an object in non-uniform circular motion with the following equation:
$$...
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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 ...
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How will "a block on a turntable" move when the turntable move very fast?
If there is a block that is placed at the rim of a turntable, and we start rotating this turntable, I know that while the turntable is rotating, a centripetal force is acting on the block. This force ...
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Which acceleration to use - Coriolis?
In this diagram, water is being ejected from a sprinkler, rotating at speed $\dot\theta = 2 rad/s$ and angular acceleration $\ddot\theta = 3 rad/s^2$ .
Water is flowing the the sprinkler at $3m/s$. In ...
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What is the relation between angular and linear acceleration?
I am wondering, when solving rigid body exercises, how can I express the relationship between linear and angular acceleration for a general case? E.g. what would be the linear acceleration in function ...
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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$...
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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 ...
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Noninertial frame of reference
For a car that is accelerating linearly, the non-inertial frame of reference is the driver in the car where from his reference frame, the car is stationary. It is so called stationary because the non-...
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Radius of centripetal acceleration
Suppose you are moving in circle of radius $r$. So there should be centripetal acceleration towards the center. Now you want to decrease the radius of the circle, so someone should apply more ...
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Why is angular acceleration of a pendulum always negative?
I was trying to derive using the Lagrangian the equations of motion of a simple pendulum under the influence of gravity. Eventually, I was brought to this conclusion:
$$\alpha = -(g\sinθ)/l$$ where $\...
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