[单选题]
A wheel starts from rest and reaches an angula4-k)8lwah mm xr speed of 6.0 rad/s while turnis gzn5w+2.fvkg :8.txq76o sn cqryh:ng through 2.0 revolutions. What is the average angular accelerationqt5:y qov 86.cns fgz.2xn:kr7g+wsh of the wheel?
A. $0.24 \; rad/s^2$
B. $1.4 \; rad/s^2$
C. $3.0 \; rad/s^2$
D. $9.0 \; rad/s^2$
Post time 2024-1-22 02:51:16