Rotational Kinematics

A wheel starts from rest and accelerates at 2 rad/s^2 for 5 seconds. What is its final angular velocity?

• 10 rad/s

• 5 rad/s

• 15 rad/s

• 20 rad/s

• 2 rad/s

• 4 rad/s

• 6 rad/s

• 8 rad/s

• 10 rad/s

• 9 rad/s/s

• 27 rad/s/s

• 6 rad/s/s

• 25 rad/s/s

• 2 rad/s/s

• -0.5 m/s

• -1 m/s

• 1 m/s

• 1.5 m/s

• 4 m/s

• 30 rad

• 45 rad

• 90 rad

• 100 rad

• 120 rad

• 3 m/s/s

• 10 m/s/s

• 18 m/s/s

• 36 m/s/s

• 48 m/s/s

A rod is pivoted about its center and initially rotates at 2.0 rad/s. It increases its angular

velocity to 14 rad/s in 3.0 s.

Find the angular acceleration over the 3.0 s period.

• 2 rad/s/s

• 4 rad/s/s

• 6 rad/s/s

• 8 rad/s/s

• 14 rad/s/s

A rod is pivoted about its center and initially rotates at 2.0 rad/s. It increases its angular

velocity to 14 rad/s in 3.0 s.

Find the angular displacement over the 3.0 s period.

• 24 rad

• 48 rad

• 3 rad

• 2 rad

• 12 rad

A bicycle wheel with a radius of 40.0 cm is initially spinning at an angular speed of

10.0 rad/s. The angular speed is increasing with an angular acceleration of 80.0 rad/s/s.

What is the initial tangential component of the bicycle’s acceleration?

• 8 m/s/s

• 2 m/s/s

• 32 m/s/s

• 25 m/s/s

• 40 m/s/s

A bicycle wheel with a radius of 40.0 cm is initially spinning at an angular speed of

10.0 rad/s. The angular speed is increasing with an angular acceleration of 80.0 rad/s/s. What is the initial centripetal component of the bicycle's acceleration?

• 12 m/s/s

• 24 m/s/s

• 32 m/s/s

• 36 m/s/s

• 40 m/s/s