Engineering Board Exam Reviewer · Engineering Mechanics · easy
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 point?
- 0.08
- 1.2
- 4.3
- 2.4
Answer
B. 1.2
Solution
v = r = 0.3 × 4 = 1.2 m/s.
More Engineering Mechanics questions
- 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…
- A 6 kg ball moving at 8 m/s collides with a 5 kg ball moving at -4 m/s (negative indicating the opposite direction). After the collision…
- A 5 kg cart moving at 10 m/s collides with and sticks to a stationary 4 kg cart (a perfectly inelastic collision). What is their common…
- A 3 kg object's velocity increases from 5 m/s to 9 m/s in 1 seconds due to a constant applied force. What is the magnitude of that force?
- A 5 kg ball moving at 7 m/s collides with a 4 kg ball moving at -3 m/s (negative indicating the opposite direction). After the collision…