Question

20) The magnitude of the frictional force along the plane in problem 19 is most nearly a) 2.5 N b) 5 N c) 6 N d) 10 N e) 16 N Questions 21-23 refer to the following diagram \omega_i = 12 rad/s 0.4 m 0.5 m 21) The disk rotates at an initial angular velocity of \omega = 12 rad/s. It is subjected to a constant angular acceleration \alpha = 20 rad/s$^2$. What is the final angular velocity? SHOW ALL WORK TO RECEIVE CREDIT a) 10.43 rad/s b) 15.43 rad/s c) 25.43 rad/s d) 30.43 rad/s

          20)
The magnitude of the frictional force along the plane in problem 19
is most nearly
a) 2.5 N
b) 5 N
c) 6 N
d) 10 N
e) 16 N
Questions 21-23 refer to the following diagram
\omega_i = 12 rad/s
0.4 m
0.5 m
21)
The disk rotates at an initial angular velocity of \omega = 12 rad/s. It is
subjected to a constant angular acceleration \alpha = 20 rad/s$^2$. What is the
final angular velocity? SHOW ALL WORK TO RECEIVE CREDIT
a) 10.43 rad/s
b) 15.43 rad/s
c) 25.43 rad/s
d) 30.43 rad/s

Show more…

20)
The magnitude of the frictional force along the plane in problem 19
is most nearly
a) 2.5 N
b) 5 N
c) 6 N
d) 10 N
e) 16 N
Questions 21-23 refer to the following diagram
= 12 rad/s
0.4 m
0.5 m
21)
The disk rotates at an initial angular velocity of ω= 12 rad/s. It is
subjected to a constant angular acceleration α= 20 rad/s^2. What is the
final angular velocity? SHOW ALL WORK TO RECEIVE CREDIT
a) 10.43 rad/s
b) 15.43 rad/s
c) 25.43 rad/s
d) 30.43 rad/s

Added by Anne P.

University Physics with Modern Physics

Hugh D. Young 14th Edition

Instant Answer

Solved by Expert Paul Gabriel

Step 1

We can use the formula: ωf = ωi + αt where ωf is the final angular velocity, ωi is the initial angular velocity, α is the angular acceleration, and t is the time. In this case, ωi = 12 rad/s and α = 20 rad/s². We need to find t. Show more…

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Text: 20) is most nearly a)2.5N b)5N c)6N d)10N e)16N Questions 21-23 refer to the following diagram: 402 0.80 21) The disk rotates at an initial angular velocity of w=12 rad/s. It is subjected to a constant angular acceleration Î±=20 rad/sÂ². What is the final angular velocity? SHOW ALL WORK TO RECEIVE CREDIT a)10.43 rad/s b)15.43 rad/s c)25.43 rad/s d)30.43 rad/s

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