Engineering Board Exam Reviewer · Engineering Mechanics · easy
A point on the rim of a wheel of radius 0.4 m rotates at an angular velocity of 5 rad/s. What is the linear (tangential) speed of that point?
- 0.08
- 2
- 5.4
- 4
Answer
B. 2
Solution
v = r = 0.4 × 5 = 2 m/s.
More Engineering Mechanics questions
- A wheel starts with an angular velocity of 6 rad/s and has a constant angular acceleration of 3 rad/s2. What is its angular velocity after…
- A solid cylinder of mass 4 kg and radius 0.25 m spins about its central axis at an angular velocity of 6 rad/s. What is its rotational…
- A solid cylinder of mass 5 kg and radius 0.2 m rotates about its central axis. What is its moment of inertia about that axis?
- A point on the rim of a wheel of radius 0.3 m rotates at an angular velocity of 4 rad/s. What is the linear (tangential) speed of that…
- A wheel starts with an angular velocity of 5 rad/s and has a constant angular acceleration of 2 rad/s2. What is its angular velocity after…
- A 7 kg cart moving at 12 m/s collides with and sticks to a stationary 6 kg cart (a perfectly inelastic collision). What is their common…
- A 4 kg object's velocity increases from 7 m/s to 13 m/s in 0.5 seconds due to a constant applied force. What is the magnitude of that force?
- A 7 kg ball moving at 9 m/s collides with a 6 kg ball moving at -5 m/s (negative indicating the opposite direction). After the collision…
- A 6 kg cart moving at 11 m/s collides with and sticks to a stationary 5 kg cart (a perfectly inelastic collision). What is their common…
- A 3.5 kg object's velocity increases from 6 m/s to 11 m/s in 1.25 seconds due to a constant applied force. What is the magnitude of that…