What does the phrase "1 meter per second per second" means? A. The velocity of an object can increase by 1 meter per second, for every minute of time measured. B. The velocity of an object can increase by 1 meter per second, for every second of time measured. C. The velocity of an object can increase by 1 meter per second.

Question

Physics

Azul Patrick

31 May, 05:49

What does the phrase "1 meter per second per second" means? A. The velocity of an object can increase by 1 meter per second, for every minute of time measured. B. The velocity of an object can increase by 1 meter per second, for every second of time measured. C. The velocity of an object can increase by 1 meter per second.

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Answers (1)

Know the Answer?

Ellen Patrick · Answer 1

The answer is B.

Explanation:

We measure acceleration as a m/s2 because we are measuring the rate of change in velocity. Therefore, meters per second is the velocity of the object, and the second per second is the velocity added per second. For example, A vehicle is travelling at 75 m/s. Because it is on the road, it must stop at a light 150 meters ahead. To make it in time, the vehicle must apply a negative acceleration of at least 25 m/s2 to stop in time. The driver is in a hurry, so when the light turns green, the vehicle accelerates at a rate of 25 m/s2. That means that each second, the vehicle's velocity increases by 25 m/s. Make sense?