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- Angular kinematics: determining satellite orbital radius - Physics Forums
Homework Equations I feel like the angular kinematics equations would be important here, as would F=ma and some other formulas related to angular kinematics (see below) Angular kinematics formulas: ω f =ω i +αt Δθ=ω i t+½αt 2 ω f 2 =ω i 2 +2αΔθ where ω is angular velocity, α is change in angular velocity, and t is time Other
- Solving Angular Kinematics: Swing Bridge Turned in 120 secs
A swing bridge has to be turned through a right angle in 120 seconds The first 50 4 seconds is a period of uniform angular acceleration ; the subsequent 34 8 seconds is a period of uniform angular velocity and the third period of 34 8 seconds is a period of uniform angular retardation
- Angular Kinematics: Calculating Cars Angular Acceleration - Physics Forums
Question The wheel of a car has radius 0 2m and initially rotates at 120 rpm In the next minute it makes 90 revolutions What is the cars angular acceleration?Attempt So I tried to get the final angular velocity and couldn't and have tried multiple times with the angular kinematics equations
- What is the significance of a minus sign in kinematics equations?
I have to calculate the angular speed My solution is correct, but I'm getting into trouble at the end I have to take the roots of the last equation to become the angular speed Because my acceleration 'ar' is positive, I become a negatif number so I can't take the root What am I doing wrong? Homework Equations The Attempt at a Solution
- Rotational Kinematics Momentum Problem - Physics Forums
Flywheels are large massive wheels (disks) used to store energy They can be spun up slowly, and then the wheel’s energy can be released quickly to accomplish a task that demands high power A large flywheel has a 2 4 m diameter and a mass of 300 kg Its maximum angular velocity is 1500 rpm a The flywheel is spun up at a constant torque of
- Angular Velocity: Angular Kinematics Homework - Physics Forums
A cyclist is traveling at a speed of 30km hr If the diameter of the bike wheel is 0 70 meter, what is the angular velocity of the wheels in rad sec? Homework Equations The Attempt at a Solution Hi, I have racked my brain trying ot work this out, I know the answer is 23 7 rad sec (but I don't know hoe to get there ;-(!
- Solving Omega in Angular Velocity Equations: A Test Prep for Sarah
well - u can take ur normal kinematics equation and replace v with omega like [tex] \theta = \theta_0 + \omega t + \alpha t
- Rotational Kinematics Problem - find the angular displacement
For the nest 1 4e3 seconds, the propeller rotates at a constant angular speed Then it decelerates at 2 3e-3 rad s^2 until it slow (without reversing direction) to an angular speed of 4 0 rad s Find the total angular displacement of the propeller Homework Equations a) w(t) = w0 + (alpha*time) The Attempt at a Solution
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