Homework Answers
Solution:
In circular motion, angular position is not constant .
Change in angular position with time gives angular velocity . Magnitude of angular acceleration and angular velocity are always constant in uniform circular motion.
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Which quantity is NOT constant in uniform circular motion? Angular position Magnitude of the tangential velocity...
7.An 80.0 kg person rotates and undergoes uniform circular motion with a constant angular velocity of...
7.An 80.0 kg person rotates and undergoes uniform circular motion with a constant angular velocity of 8.0 rad/s 2.0m from the center of a merry-go-round. a) What is the person’s centripetal acceleration? b) What is the centripetal force this person experiences?
A biker runs at constant speed 34 m/s around a circular track with a centripetal acceleration...
A biker runs at constant speed 34 m/s around a circular track with a centripetal acceleration of magnitude 12.5 m/s^2 a) what is track's radius ? b) what is the magnitude of angular velocity of the sprinter? c) what is the magnitude of the sprinter's angular acceleration? d) how long does it take to complete one revolution this time is called "period of motion"? e) how many revolutions per minute does the sprinter make?
4. A sprinter nuns at constant speed 9 m's around a circular track with a centripetal...
4. A sprinter nuns at constant speed 9 m's around a circular track with a centripetal asselsration of magnitude 26m (a) What is the track 's radius?(b) What is the magnitude of angular velocity of the sprinter? (c) What is the magnitude of the sprinter's angular acceleration? (d) How long des it take to complete one revolution (this time is called "period of motion")? (e) How many revolutions per minute does the sprinter make?
An electric ceiling fan is rotating about a fixed axis with an initial angular velocity magnitude...
An electric ceiling fan is rotating about a fixed axis with an initial angular velocity magnitude of 0.280 rev/s . The magnitude of the angular acceleration is 0.901 rev/s2 . Both the the angular velocity and angular accleration are directed clockwise. The electric ceiling fan blades form a circle of diameter 0.790 m . A). Compute the fan's angular velocity magnitude after time 0.209 s has passed. Express your answer numerically in revolutions per second. _____________ rev/s B). Through how...
An electric ceiling fan is rotating about a fixed axis with an initial angular velocity magnitude...
An electric ceiling fan is rotating about a fixed axis with an initial angular velocity magnitude of 0.300 rev/s . The magnitude of the angular acceleration is 0.883 rev/s2 . Both the the angular velocity and angular accleration are directed counterclockwise. The electric ceiling fan blades form a circle of diameter 0.790 m . Compute the fan's angular velocity magnitude after time 0.192 s has passed. Through how many revolutions has the blade turned in the time interval 0.192 s...
(a) What is the magnitude of the tangential acceleration of a bug on the rim of...
(a) What is the magnitude of the tangential acceleration of a bug on the rim of a 10.5-in.-diameter disk if the disk accelerates uniformly from rest to an angular speed of 79.0 rev/min in 3.30 s? m/s2 (b) When the disk is at its final speed, what is the magnitude of the tangential velocity of the bug? m/s (c) One second after the bug starts from rest, what is the magnitude of its tangential acceleration? m/s2 (d) One second after...
a) What is the magnitude of the tangential acceleration of a bug on the rim of...
a) What is the magnitude of the tangential acceleration of a bug on the rim of a 12.5-in.-diameter disk if the disk accelerates uniformly from rest to an angular speed of 76.0 rev/min in 4.70 s? m/s2 (b) When the disk is at its final speed, what is the magnitude of the tangential velocity of the bug? m/s (c) One second after the bug starts from rest, what is the magnitude of its tangential acceleration? m/s2 (d) One second after...
a broken wheel has a constant angular acceleration other than zero. Which of the following kinematic parameters will re...
a broken wheel has a constant angular acceleration other than zero. Which of the following kinematic parameters will remain constant in magnitude in the particles of that wheel? a) tangential velocity b) centripetal acceleration c) tangential acceleration d) angular velocity e) all of the above
An electric ceiling fan is rotating about a fixed axis with an initial angular velocity magnitude...
An electric ceiling fan is rotating about a fixed axis with an initial angular velocity magnitude of 0.270 rev/s . The magnitude of the angular acceleration is 0.888 rev/s2 . Both the the angular velocity and angular acceleration are directed counterclockwise. The electric ceiling fan blades form a circle of diameter 0.800 m . a) Compute the fan's angular velocity magnitude after time 0.203 s has passed. b) Through how many revolutions has the blade turned in the time interval...
1). In a uniform circular motion, instantaneous velocity is tangent to the circle a) True b)...
1). In a uniform circular motion, instantaneous velocity is tangent to the circle a) True b) False c) Can's say 2).In a uniform circular motion, acceleration is normal to the velocity and directed toward the center a) True b) False c) Unknown 3). For a particle of mass 'm' moving with a uniform velocity 'v'in a circle of radius 'r', write the expression for centripetal force (Fc)? 4). If a particle rotates in a circle of radius r = 10...
4. A sprinter nuns at constant speed 9 m's around a circular track with a centripetal asselsration of magnitude 26m (a) What is the track 's radius?(b) What is the magnitude of angular velocity of the sprinter? (c) What is the magnitude of the sprinter's angular acceleration? (d) How long des it take to complete one revolution (this time is called "period of motion")? (e) How many revolutions per minute does the sprinter make?
1). In a uniform circular motion, instantaneous velocity is tangent to the circle a) True b) False c) Can's say 2).In a uniform circular motion, acceleration is normal to the velocity and directed toward the center a) True b) False c) Unknown 3). For a particle of mass 'm' moving with a uniform velocity 'v'in a circle of radius 'r', write the expression for centripetal force (Fc)? 4). If a particle rotates in a circle of radius r = 10...
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