Scelta multipla
Which of the following scenarios involves cceleration?
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2. 1D Motion / Kinematics
Intro to Acceleration
Scelta multipla
Which of the following describes an object with ?
A
Changing direction while maintaining
B
Slowing down to a stop
C
Moving at a constant
D
Speeding up in a straight line
Guida verificata passo dopo passo1
Understand that acceleration \(a\) is defined as the rate of change of velocity \(v\) with respect to time, mathematically expressed as \(a = \frac{d v}{d t}\).
Recognize that if acceleration \(a = 0\), it means the velocity \(v\) is not changing over time; both its magnitude (speed) and direction remain constant.
Analyze each option: Changing direction while maintaining \(v\) implies velocity direction changes, so acceleration is not zero because velocity vector changes.
Slowing down to a stop means the speed is decreasing, so acceleration is not zero because velocity magnitude changes.
Speeding up in a straight line means velocity magnitude increases, so acceleration is not zero; only moving at a constant velocity \(v\) means acceleration is zero.
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