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natita [175]
3 years ago
8

Nikolas, the fire extinguisher, and the skateboard have a combined mass of 50 kg. What force would the fire extinguisher have to

produce to propel Nikolas if he wanted to accelerate at a rate of 1.2 m/s2? Round your answer to the nearest whole newton.
Physics
1 answer:
ExtremeBDS [4]3 years ago
6 0

Answer:

60N

Explanation:

Given parameters:

Combined mass = 50kg

Acceleration  = 1.2m/s²

Unknown:

Force to propel  = ?

Solution:

From Newton's second law of motion, we know that;

       Force  = mass x acceleration

 So;

         Force  = 50 x 1.2  = 60N

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solution:

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density of air( d) =1.29 kgm

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density of ball= mass of ball/Volume of ball

or, 8000=m/0.00052

or, m=4.16 kg

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To attain the terminal velocity,

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3 years ago
A 50.0 kg object is moving at 18.2 m/s when a 200 N force
gayaneshka [121]

Answer:

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Explanation:

given data

mass = 50 kg

initial velocity  = 18.2 m/s

force = -200 N ( here force applied to opposite direction )

final velocity = 12.6 m/s

solution

we know here acceleration will be as

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we get here now required time that is

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put here value

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distance = \frac{V_{(final)}^2 - V_{(initial)}^2}{2a}    ........2

distance = \frac{12.6}^2 -{18.2}^2}{2\times (-4)}  

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