A Car Starting from Rest Has a Constant Acceleration of 4

question 25

Multiple Choice

A car starting from rest has a constant acceleration of 4 meters per second per second.How long will it take to reach a speed of $20 \mathrm {~m} / \mathrm { s }$ ?

• A)1.25sec
• B)4sec
• C)5sec
• D)20sec

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Definitions:

Pulse Oximeter

A noninvasive device used to measure the oxygen saturation level of the blood and the heart rate through a sensor attached to the fingertip or earlobe.

Blood Oxygen

A measure of the amount of oxygen carried by the hemoglobin in the blood, typically expressed as a percentage.

ECG Tracing

The graphical representation of the electrical activity of the heart over time, captured by electrodes and displayed by an electrocardiograph.

Shivering

An involuntary response where the body trembles to generate heat in response to cold.