Exam 3 Example Questions

# Exam 3 Example Questions - Example Exam 3 Name_ These...

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Example Exam 3 Name____________________________ - 1 - These questions are similar to ones that might appear on the third exam. They will be discussed in the Tuesday recitation prior to the exam. There will be 20 questions on the exam. 1. Which of the following is a correct definition of angular acceleration α ? (a) dt d θ = (b) dt d ω = (c) t = (d) 2 2 dt d = 2. A spring is vertically hanging from a hook. Without a mass attached, its lower end is at a position of 40 cm. A mass of 0.02 kg is added to the spring, resulting in a new position of 70 cm for the end of the spring. The spring constant of the spring is (a) 0.00067 N/m (b) 0.067 N/m (c) 0.65 N/m (d) 1500 N/m 3. The amplitude of an underdamped oscillator depends upon time as () = t m b A t A 2 exp 0 . If b is increased then the amplitude (a) decays more quickly (b) decay at the same rate (c) decays less quickly (d) will not decay, but will increase with time. 4. Consider the picture to the right of a rod attached to a horizontal wall being held in place by a cable. If the point of rotation is taken to be at the end of the rod where the horizontal cable is attached, then the torque on the rod due to the 30 kg weight is (a) zero (b) positive (c)

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## Exam 3 Example Questions - Example Exam 3 Name_ These...

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