Multiple Choice
An old 78 rpm record rotates through an angle of 320° as it slows down uniformly from 78.0 rpm to 22.8 rpm.What is the magnitude of the angular acceleration of the record?
A) 2.34 rad/s2
B) 5.46 rad/s2
C) 6.50 rad/s2
D) 8.35 rad/s2
E) 10.9 rad/s2
Correct Answer:

Verified
Correct Answer:
Verified
Related Questions
Q24: A wheel accelerates from rest to <img
Q25: At a certain instant,a compact disc is
Q26: An electrical motor spins at a constant
Q27: A chicken is running in a circular
Q28: What is the angular speed,in rad/s,of a
Q30: A solid uniform sphere of mass 120
Q31: A potter's wheel has the shape of
Q32: Two uniform solid balls,one of radius R
Q33: While spinning down from 500 rpm to
Q34: A child is riding a merry-go-round that