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Nadusha1986 [10]
3 years ago
11

What does it mean tha velocity is vector quantity

Physics
1 answer:
Wewaii [24]3 years ago
7 0
It means that velocity not only has a size, but it also has a direction.

Some other vector quantities are force and acceleration.
They have sizes and directions.
 
Temperature, cost, and weight are quantities with only size and no direction.
Those are called "scalar" quantities.
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A an Oxygen isotope

Explanation:

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There only outside force acting on the package was its weight -- that force is straight down. The horizontal velocity that the plane gave the package continued (as Newton said it would), so as it fell, horizontally it kept pace with the plane.

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Time measurements from a stopwatch are not precise. Why not ?
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Human error (average human reaction time is .2 seconds)
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A 10-m-long glider with a mass of 680 kg (including the passengers) is gliding horizontally through the air at 34 m/s when a 60
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Answer:

34 m/s

Explanation:

m = Mass of glider with person = 680 kg

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m_1 = Mass of glider without person = 680-60 kg

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As the linear momentum of the system is conserved

m_1v_1+m_2v_2=mv\\\Rightarrow v_1=\dfrac{mv-m_2v_2}{m_1}\\\Rightarrow v_1=\dfrac{680\times 34-60\times 34}{680-60}\\\Rightarrow v_1=34\ m/s

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Components: 0.0057, -0.0068. Magnitude: 0.0089 m/s

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