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---Select--- True False : Bead B has the greater speed because for a given chang

ID: 1979471 • Letter: #

Question

 ---Select--- True False : Bead B has the greater speed because for a given change in the angle of rotation in a given time, the outer bead travels a farther distance.

 ---Select--- True False : Beads A and B have the same speed: since both are attached to the rod, both have the same angular speed.

 ---Select--- True False : Bead B has the greater speed because  is the same for both beads, but r is greater for bead B.

 ---Select--- True False : Beads A and B must have the same speed because if one were moving faster than the other, the rod would have to bend.

 ---Select--- True False : Bead A is faster than bead B, since the speed of a rotating object is given by v2/r and r is smaller for bead A, so its speed is greater.

 ---Select--- True False : Bead A is faster than bead B since during the same time it turns more sharply than bead B because it has a smaller r.

(b) Which bead has the greater magnitude of acceleration? Select True or False for each explanation:

 ---Select--- True False : Bead A has a greater acceleration because the acceleration is v2/r and r is smaller for A.

 ---Select--- True False : Both beads have the same acceleration equal to zero, since both beads are traveling around the circle at a constant speed, and when the speed is constant, there is no acceleration.

 ---Select--- True False : Both beads have acceleration equal to zero, since with each revolution, they wind up at the same point traveling at the same speed and direction as they started. This is true for every point on the circle, and since for every point the change in velocity is zero, at every point the acceleration must be zero.

 ---Select--- True False : Bead A has a greater acceleration because in the same time interval it turns through a sharper arc, and so it has a greater change in velocity.

 ---Select--- True False : Bead B has the greater acceleration because in a given time interval the change in direction of each bead is the same, but because bead B has a greater speed than bead A, the change in velocity is greater for B.

 ---Select--- True False : Bead B has the greater acceleration because  is the same for both but bead B has a greater r.

Just the answers is fine on this one. Thanks in advance

Explanation / Answer

a) as v = r
---Select--- True : Bead B has the greater speed because is the same for both beads, but r is greater for bead B.

remaining allare FALSE

b)

as   a = r2

True : Bead B has the greater acceleration because is the same for both but bead B has a greater r

remaining all are false