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3 years ago

A negative velocity, approaching zero, represents a negative acceleration. True or False

Physics

1 answer:

ruslelena [56]3 years ago

8 0

Answer:

False.

Explanation:

Lets assume our positive direction to the right (this reasoning works for any direction). A negative velocity would then be then directed to the left. If it varies as such that it aproaches to zero, it means that the variation is directed to the right, and that is where the direction of the acceleration must be pointing. In other words, its losing its velocity, so the acceleration must point opposite to the velocity. Then it means the acceleration is positive.

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kirill [66]

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2) The final velocity of the car at the end of 75 m is 14.69 m/s

Explanation:

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2) The acceleration of the car, a= 1.2 $m/s^2$

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Using third equation of motion:

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The final velocity of the car at the end of 75 m is 14.69 m/s

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3 years ago

Why do we see only one side of the moon from earth?

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