A clay is put at the edge of a potter’s wheel of radius 0.800 m. The wheel is at rest at t = 0 and it starts rotating with a constant angular acceleration. If its angular speed at t = 3.50 s is 2.80 rad/s, what is the tangential acceleration magnitude of the clay? * 0.640 m/s^2 1.28 m/s^2 1.79 m/s^2 2.24 m/s^2 A wheel is spinning at 27 rad/s but is slowing with an angular acceleration that has a magnitude given by (4.0 rad/s^4)t^2. It stops in a time of: * 1.7 s 2.7 s 3.2 s 4.4 s 7.3 s An object with a mass of 2 kg displaces 1.4 kg of water. Which of the following is true? * The buoyant force on this object is 10 N. The density of this object is less than that of water. The buoyant force on this object is 14 N. The buoyant force on this object is 3 N
A clay is put at the edge of a potter’s wheel of radius 0.800 m. The wheel is at rest at t = 0 and it starts rotating with a constant angular acceleration. If its angular speed at t = 3.50 s is 2.80 rad/s, what is the tangential acceleration magnitude of the clay? * 0.640 m/s^2 1.28 m/s^2 1.79 m/s^2 2.24 m/s^2 A wheel is spinning at 27 rad/s but is slowing with an angular acceleration that has a magnitude given by (4.0 rad/s^4)t^2. It stops in a time of: * 1.7 s 2.7 s 3.2 s 4.4 s 7.3 s An object with a mass of 2 kg displaces 1.4 kg of water. Which of the following is true? * The buoyant force on this object is 10 N. The density of this object is less than that of water. The buoyant force on this object is 14 N. The buoyant force on this object is 3 N
A clay is put at the edge of a potter’s wheel of radius 0.800 m. The wheel is at rest at t = 0 and it starts rotating with a constant angular acceleration. If its angular speed at t = 3.50 s is 2.80 rad/s, what is the tangential acceleration magnitude of the clay? * 0.640 m/s^2 1.28 m/s^2 1.79 m/s^2 2.24 m/s^2 A wheel is spinning at 27 rad/s but is slowing with an angular acceleration that has a magnitude given by (4.0 rad/s^4)t^2. It stops in a time of: * 1.7 s 2.7 s 3.2 s 4.4 s 7.3 s An object with a mass of 2 kg displaces 1.4 kg of water. Which of the following is true? * The buoyant force on this object is 10 N. The density of this object is less than that of water. The buoyant force on this object is 14 N. The buoyant force on this object is 3 N
A clay is put at the edge of a potter’s wheel of radius 0.800 m. The wheel is at rest at t = 0 and it starts rotating with a constant angular acceleration. If its angular speed at t = 3.50 s is 2.80 rad/s, what is the tangential acceleration magnitude of the clay? *
0.640 m/s^2
1.28 m/s^2
1.79 m/s^2
2.24 m/s^2
A wheel is spinning at 27 rad/s but is slowing with an angular acceleration that has a magnitude given by (4.0 rad/s^4)t^2. It stops in a time of: *
1.7 s
2.7 s
3.2 s
4.4 s
7.3 s
An object with a mass of 2 kg displaces 1.4 kg of water. Which of the following is true? *
The buoyant force on this object is 10 N.
The density of this object is less than that of water.
The buoyant force on this object is 14 N.
The buoyant force on this object is 3 N
Definition Definition Rate of change of angular velocity. Angular acceleration indicates how fast the angular velocity changes over time. It is a vector quantity and has both magnitude and direction. Magnitude is represented by the length of the vector and direction is represented by the right-hand thumb rule. An angular acceleration vector will be always perpendicular to the plane of rotation. Angular acceleration is generally denoted by the Greek letter α and its SI unit is rad/s 2 .
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