Which of the following statements is/are true regarding vector algebra?
A. In vector resolution, when a vector is resolved into two components, they are always perpendicular.
B. In vector composition, only perpendicular components can be composed into a resultant.
C. both A and B
D. none of the above
Answer: A. In vector resolution, when a vector is resolved into two components, they are always perpendicular.
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Biomechanics Chapter 3
- When injury results from a single large force application, such as a tackle, the injury is usually termed what?
- Which of the following is true regarding electromyography?
- When absorbing the force of a baseball, which of the following will change the impulse?
- The formula for torque includes force and what other variable?
- Mechanical stress in the lumbar vertebrae is less than expected because of which of the following structural details?
- A bending force can result in which of the following types of stress?
- A free body diagram includes which of the following?
- In a free body diagram of the human body, where would the vector representing weight of the body originate?
- In a free body diagram of the human body, which direction would the vector representing weight of the body point?
- Which of the following will reduce the pressure of a baseball against a catcher's hand?
- Which of the following is true regarding volume?
- The "quantity of matter composing a body" defines what?
- Inertia is directly proportional to which quantities?
- When muscles on opposite sides of a joint develop tension, what determines the direction of joint movement?
- Which of the following is/are scalar quantities?
- Scalar quantities and vector quantities have which of the following properties in common?
- The rotary effect created by an eccentric force defines what?
- Stress fractures result from which of the following types of loading?
- Which of the following is a correct unit of torque?
- When you wear a backpack, your center of gravity shifts in which direction?
- Which of the following is/are true regarding a shot put and a softball of equal diameter?
- Which of the following statements is/are true regarding density?
- Which of the following statements is/are true?
- Which of the following occurs when a bone is caused to twist about the longitudinal axis?