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Questions and Answers
What is the definition of instantaneous acceleration?
What is the definition of instantaneous acceleration?
- The slope of the curve of velocity versus time
- The rate at which the velocity of a particle is changing at any instant (correct)
- The second derivative of the position of a particle with respect to time
- The average acceleration of a particle over a time interval
Which equation represents the average acceleration of a particle over a time interval t, when the particle has velocity v1 at time t1 and then velocity v2 at time t2?
Which equation represents the average acceleration of a particle over a time interval t, when the particle has velocity v1 at time t1 and then velocity v2 at time t2?
- $a_{avg} = \frac{v_2 - v_1}{t_2 - t_1}$ (correct)
- $a_{avg} = \frac{v_1 - v_2}{t_2 - t_1}$
- $a_{avg} = \frac{v_1 - v_2}{t_1 - t_2}$
- $a_{avg} = \frac{v_2 - v_1}{t_1 - t_2}$
How can the acceleration of a particle be calculated using its position and time?
How can the acceleration of a particle be calculated using its position and time?
- By taking the second derivative of the position with respect to time (correct)
- By taking the derivative of the velocity with respect to time
- By taking the first derivative of the position with respect to time
- By taking the integral of the position with respect to time
What are the units of acceleration?
What are the units of acceleration?
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What does the algebraic sign of acceleration represent?
What does the algebraic sign of acceleration represent?
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